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The 6 Best Running Hydration Packs for Women of 2024
We pounded out the miles wrapped up in running hydration packs from Nathan, Salomon, Naked, Ultimate Direction, and more to help you find the best option
A look at some of the vest hydration vests available on the market today.
Searching for a women's hydration pack for running? You've come to the right place. We have exhaustively tested 14 of the best women's packs available today to help you find your perfect match. Our running experts have put in miles of sweat to provide you with information about the most cutting-edge gear we can find. We searched high and low, ran peaks and marathons, and even tried to induce chafing to determine which hydration vests hold up to the hype and which aren't worth shelling out the cash for. Whether you want to carry a lot or a little, we've got a suggestion to fit your hydration needs and budget.
Our experts put in the time and miles to produce in-depth reviews that cover all of the running gear you need, no matter what your fitness routine looks like. We continually test the best women's trail running shoes and top-ranked women's road running shoes to stay on top of the ever-evolving footwear market.
Editor's Note: We updated this review on November 30, 2024, to include new and updated offerings from Ultimate Direction, Salomon, Osprey, and more, as well as to provide more in-depth information on assessing your needs when considering a new pack.
Too bulky for running, hydration system not included
Low hydration capacity, cumbersome hydration system use, bouncy
Bottom Line
The most comfortable and spacious hydration pack that we have tested to date
This hydration vest offers the best of all worlds in terms of its versatile hydration system uses, smooth and meshy construction, and well-placed pockets
An affordable and versatile hydration vest that remains comfortable even when loaded to its maximum capacity
A well-featured and comfortable pack that is designed to haul everything you need on ultra-distance running excursions
An affordable running partner with a great design, built for the grittiest trails you can find
The snug fit and intelligent pocket placement on this vest make it great for daily runs when you need to carry the essentials and not much else
This is an affordable pack that offers ample storage with enough room for your trail running essentials
This well-featured vest offers thoughtful pocket placement and a comfortable fit but is sold without a compatible vessel for toting liquid
This is a rugged and affordable pack that can stash all of your goodies for shorter mountain excursions
A middle-of-the-road pack that has some cool features but offers less than other popular options
This pack has a lot of well-placed pockets, but lacks some of the comfort and fit features that make for a favorite long-distance gear hauler
Though not the most comfortably or thoughtfully designed, this super-hauler vest is the one you'll want if you are taking on ultra-long days and need to stash a large variety of snacks and gear
While not well-suited for trail running, this bulky pack can comfortably tote 6L of gear and plenty of water (hydration system not included) on long, meandering hikes
For short, easy runs, this simplistic belt can stash your car keys, some nutrition, 12 ounces of water, and maybe your phone, but don't expect it to stay put on your hips
Advertised Included Liquid Capacity (Volume by Liter)
1.6 L
1.0 L
1.0 L
1.0 L
1.5 L
1.0 L
2.0 L
0 L
1.5 L
1.0 L
2 L
1.0 L
0 L
12 oz
OGL Volume-to-Weight Ratio (Bigger Is Better!)
1.6
1.3
1.1
1.1
0.6
0.6
1.0
0.8
0.6
0.6
0.3
1.1
0.4
0.5
Number of Pockets (Including Hydration)
14
13
10
11
12
8
6
10
9
7
8
13
6
4
Included Water Storage
1.6 L hourglass-shaped insulated reservoir
Two 0.5 L bottles
Two 0.5 L soft flasks
Two 0.5 L Body Bottle III soft flask
1.5 L reservoir
Two 0.5 L HydraPak soft flasks
2.0 L reservoir
None
HydraPak Elite 1.5 L reservoir
Two 0.5 L HydraPak soft flasks
2 L reservoir
Two 0.5 L Body Bottle 500 soft flasks
None included, capable of holding two bottles
Two 0.2 L BPA-free hard flasks
Optional Water Storage (Not Included)
Two soft flasks up to 0.53 L/ea
Reservoir compatible up to 1.5 L
Reservoir compatable up to 1.5 L
Reservoir compatable up to 2.0 L
Two soft flask pockets up to 0.25 L/ea
Reservoir compatible up to 1.5 L
Two soft flask pockets
Four pockets each sized to fit 0.5 L UltraFlask 550
bottles (not included)
Two soft flask pockets up to 0.5 L/ea
None
Two soft flask pockets up to 0.65 L/ea
Reservoir compatible upt to 2.0 L
None
Swap out for two 0.3 L bottles
Available Pockets
4 front flask/stash pockets, 2 water-resistant chest zip pockets, 1 interior key/pill pocket, 2 side stash pockets, 1 back stash pocket with velcro tab, 2 rear kangaroo stash pockets (1 side access and 1 side + vertical access), 1 large back diagonal zip pocket, 1 reservoir compartment with velcro tab
2 bilateral front flask/stash pockets with elastic loops, 2 bilateral side stretch pockets, 2 bilateral front zip pockets, 2 shoulder stretch pockets, 1 interior trash pocket, 1 large back zip compartment, 1 rear dual-entry tunnel pocket, 1 top stretch pocket, 1 insulated rear reservoir sleeve with hook
2 front flask/stash pockets, 1 front zipped pocket, 2 front stretch pockets, 1 back main zip compartment, 1 small interior stash pocket, 1 back reservoir compartment
2 cinching flask/stash pockets with loops, 2 (low) front stash pockets, 1 water-resistant chest zip pocket, 1 water-resistant shoulder stash pockets. 2 rear zippered lat pockets, 1 water-resistant main back zip compartment, 1 stretch mesh back stash pocket, 1 reservoir compartment with snap hook
2 upper front flask/stash pockets, 4 lower front stretch pockets, 1 zip phone/chest pockets, 2 stretch mesh side panel pockets, 1 back zip compartment
1 stretch mesh back pocket, 1 back zip reservoir sleeve
2 front flask/stash pockets, 2 lower front stretch pockets, 2 side stretch stash pockets, dual entry back kangaroo pouch, 1 back reservoir compartment with clip
2 front flask/stash pockets, 1 front stash pocket, 1 main back zip compartment, 1 back reservoir sleeve with velcro loop, 1 back zip pocket
2 front flask pockets, 1 shock cord cinching shoulder stretch pocket, 1 magnetic shoulder pocket, 2 side stretch pockets, 2 magnetic back "Fluidic holster" pockets, 1 top-loading back stretch pocket with shock cord cinch, 1 interior water-resistant back zip pocket
2 bottle compatible front pockets, 2 front stretch pocket, 1 main zip compartment, 1 reservoir sleeve pocket with lash, 2 small interior mesh slip pockets, 1 rear stash pocket (Fall 2024 Update: 1 front zip pocket replaced 1 front stretch pocket)
2 soft flask pockets with elastic loops, 1 zippered chest pocket, 1 dual entry back lumbar pocket, 1 back zip pocket, 2 quick-access stash pockets
4 front flask/stash pockets (2 cinching), 1 main zip compartment, 1 reservoir pocket, 1 back kangaroo stash pocket, 1 rear zipper pocket,
2 cinching flask/stash pockets with loops, 2 (low) front stash pockets, 1 water-resistant chest zip pocket, 2 water-resistant shoulder stash pockets. 2 rear zippered lat pockets, 1 water-resistant main back zip compartment, 1 small interior zip pocket, 1 stretch mesh back stash pocket, 1 reservoir compartment with snap hook
2 padded water bottle sleeves with bungee retention straps, 1 rear zip compartment, 1 rear zip slash pocket, 2 zip side-waist pockets
2 water bottle sleeves with elastic loops, 1 zip pocket with divider, 1 small interior slip pocket
External Storage Options
None
Dual-side bungee
Back bungee
Back bungee
Lash loops
Lash loops
Daisy chain lash loops
None
Cord loops/lash points (compatible with PackMod Bungees)
Lash loops
Lash loops
Back bungee
None
None
Pole Holders
1 vertical entry rear kangaroo pocket
Elastic bungees and loops (front and rear options), custom quiver compatible
Custom quiver compatible, back bungee
4 hooks and bungee loops (front or back closure)
Front/side loop attachments
Front/side loop attachments
2 sets of side bungee loops with hooks
Z-pole compatible (front attachment loops or top loacking back pocket)
4 bungee-compatible loops at back
Over-the-shoulder Z-pole carry system
No
6 hooks and bungee loops (front or back closure)
No
No
Extra Features
Adjustable sternum straps. loops/hose guides and magnetic latch safety whistle, reflective detailing
Torso cinch system, hydration flask loops, dual side compression laces, safety whistle, interior key clip, reflective loop for light, bottom hose port and shoulder guide
Torso cinch system, safety whistle, loops, elastic key clip, bottom hose port and shoulder loops/guides
Comfort cinch torso adjustment system, adjustable sternum straps, shoulder port for hose, key clip
Adjustable chest straps, shoulder path and guide/loop for hose, safety whistle, lash points, bungee loop zipper pulls
Weight: 7.20 oz | Included Liquid Capacity: 1.6 liters
REASONS TO BUY
Huge storage capacity
Lightweight
Silky smooth
Comfortable apparel-like fit
REASONS TO AVOID
Expensive
Might be more storage than many runners need
Hair gets stuck in upper back Velcro closures
The Nathan Pinnacle 12L is one of the most comfortable hydration packs available on the market today. Its abundant size options, contour-hugging female-specific fit, and ample storage capacity make it a top recommendation for runners of all kinds. This hydration pack has an impressive 14 pockets, making it an exceptional choice for your longest, neediest days in the backcountry. You'll definitely find yourself wanting to get out and run with the Pinnacle on your team.
The high price point is the only real drawback to the Pinnacle. Ultimately, the sheer number of features and comfortable assets make it worth the cost, but we understand it's a large upfront investment. For a slightly lesser investment, you can pick up the 12-liter Salomon ADV Skin 12, which offers a similarly pocket-heavy design with nearly equal levels of comfort and versatility in its hydration system. Or, if a 12-liter capacity is more than you need, know there are smaller, more affordable options available, like the 8-liter Salomon Active Skin 8. But if you're shopping for a long-lasting, high-capacity vest with a cozy profile, the Nathan Pinnacle is well worth the investment, especially for endurance runners.
Weight: 7.5 oz | Included Liquid Capacity: 1 liter
REASONS TO BUY
Affordable
Comfortable
Versatile
Great capacity
REASONS TO AVOID
Fewer adjustment options
The Salomon Active Skin 8 is a well-designed and comfortable vest at a great price. The durable ripstop body and soft bungee compression systems make for a hydration companion that will be with you through your trail race training days and beyond. The contoured fit and breathable pack panel are extremely comfortable and will suit a variety of body shapes and climates. Whether you want to run with a little bit of gear or up to 10 liters (we measured), this affordable pack comes with a strong endorsement from us.
Even though the Active Skin 8 is available in four sizes, it lacks the broad range of adjustment options some other models offer. The front bungee is the sole adjustment point, limiting the ability to adjust the fit across the torso. Since you can independently tighten the two ends of the bungee, it is easy enough to cinch the body of the vest in a way that suits a variety of needs well. If you try the Active Skin 8 on, we suggest you play with the size options and the bungee cinch strap. Once you get it dialed, we are confident this vest will make a fantastic addition to most running kits, no matter what kind of runner you are. Those who want a larger capacity but love the fit of Salomon-made products will love the Salomon ADV Skin 12. Or, if you want to pick up something for race day that falls somewhere in between, consider Ultimate Direction's Ultra Vesta 6.0 with its smart, Comfort Cinch torso adjustment system and sleek, well-pocketed design that sells at a very similar price point.
Salomon Now Offering Unisex Models Only
In fall 2024, Salomon stopped offering women's specific vests in favor of unisex models designed to accommodate the needs of both male and female runners. While the fit of the Active Skin 8 appears to be very similar overall, our female test team will revisit the unisex model for comparative purposes with our next update.
The shape of the soft flasks of the Active Skin make them much easier to replace on the go than many we have tested.
Weight: 9.6 oz | Included Liquid Capacity: 1 liter
REASONS TO BUY
Great hydration system versatility
Insulated hydration bladder sleeve
Breathable, well-rounded comfort
Large capacity
REASONS TO AVOID
Front closure bungees are long
Too much pack for shorter efforts
The updated Salomon ADV Skin 12 is one of our favorite packs because of how versatile its hydration system is. Running packs can be expensive, so why not opt for one that offers two above-average systems for overall versatility? While the ADV Skin doesn't include a hydration bladder, it comfortably fits a 1.5L bladder in its (removable) insulated bladder sleeve. Each 500mL bottle rides comfortably in the front, and when loaded to the gills with water, this pack remains comfortable with minimal bouncing. The back panel of the ADV Skin is made of double-layered mesh, while the back is made of a lightweight polyamide. The bungees do a fantastic job of tamping down your load and are super easy to adjust as you run, further adding to this pack's overall standing as an exceptional choice for runs of all lengths and styles.
While we love the bungees of the Salomon ADV Skin 12 for compression and fit, the front closure ones feel a bit long when the pack is cinched up snugly. This certainly isn't a dealbreaker when it comes to this pack, but it is worth considering. If you are in the market for a breathable and comfortable hydration vest that can keep you company on trail and road runs of all lengths, we don't hesitate to recommend the awesome and versatile Salomon ADV Skin 12. The Nathan Pinnacle 12L has an equally powerful capacity but carries its weight slightly differently; both are supremely comfortable. The Salomon Active Skin 8 is slightly smaller but offers many of the same Salomon-made benefits as the ADV Skin 12 at a lower price.
Salomon No Longer Offering Women's Models
As of the fall of 2024, Salomon has switched from offering women's specific vests to selling unisex models designed to accommodate all runners. The fit and overall design appear very similar to the original women's version, but our female test team will be reexamining the unisex version of the ADV Skin 12 and reporting back with our next update.
The Salomon ADV Skin 12 is versatile enough to provide hydration across a variety of activity types.
Weight: 9.2 oz | Included Liquid Capacity: 1 liter
REASONS TO BUY
Great storage capacity
Fantastic pockets
Customizable fit
Removable bungees
REASONS TO AVOID
Less soft to the touch
Might be more vest than some runners need
The Ultimate Direction Ultra Vesta 6.0 is a 9.2-ounce hydration pack that is ready to race. From its exceptional pocket placement to its high-functioning external compression system, this is the vest we reach for when we know there won't be any time to fiddle with our gear. The Ultra Vesta offers 360-degree adjustment cords to ensure a bounce-free fit, while the soft flasks stay locked in so you can hydrate as you run. With safety features and thoughtful touches, such as specific waterproof pockets, this vest is a go-to winner for race-ready gear.
At a 10.2 liter capacity, the Ultra Vesta 6.0 might be more vest than you want or need. There are plenty of more minimalist-style hydration packs on the market, even if the Ultra Vesta isn't one of them. The ripstop textile is not as silky-soft as other contenders we tested, but this aspect does not detract from its overall comfort. If you want to invest in a running vest that will suit your body shape and needs, we highly recommend the new-and-improved Ultra Vesta. The Ultimate Direction Mountain Vesta 6.0 is a super-hauler vest that, while a bit less comfortable, is comparable to the Ultra Vesta in design and pocket variety. If minimalism is more your speed, take a look at the impressively streamlined yet supportive Naked HC or the less expensive, more classically styled Nathan TrailMix 7L.
Weight: 5.1 oz | Included Liquid Capacity: 1 liter
REASONS TO BUY
Compressive
Comfortable
Lightweight
Minimalistic
REASONS TO AVOID
Fit has to be specific
Might not hold enough gear for some runners
Poor volume-to-weight ratio
The Naked HC is a minimalistic vest, unlike any others we have seen. With a total weight of just over 5 ounces, this compressive vest fits more like a sports bra than a standard hydration pack, and the carrying capacity depends on the size you purchase. This is one of our favorites for light days. If you are a minimalistic-style runner who only wants to carry the basics, this zippered-front vest (recently upgraded with a speed-release zipper and additional reflective detailing) will be a great match for you.
When it comes to the Naked HC, the compression of your gear is based on how secure the zippered closure is, so it is important to buy the right size. Unfortunately, this can be a bit tricky since this vest lacks bungees and straps for customizing the fit. If you plan on purchasing just one hydration vest, you may want a larger capacity model to accommodate a wide variety of run lengths. The modest capacity and bra-like fit make the Naked HC our favorite for lighter days when we only want to bring the essentials. For longer runs, a pack that doesn't feel massive but can tote a lot, like the Salomon ADV Skin 12, is a great choice. For truly minimalistic vibes, the highly affordable and svelte AiRunTech Running Hydration Belt is worth checking out.
Weight: 10.7 oz | Included Liquid Capacity: 1.5 liters
REASONS TO BUY
Strong materials
Durable
Moderate gear capacity
Well-featured
REASONS TO AVOID
Poor volume-to-weight ratio
Heavier because of internal frame
If you want an adventure-ready hydration pack with a moderate storage capacity, look no further than the Osprey Dyna 6. This hydration pack has an internal frame with a strong compression system, which really makes the backpack-like fit work. The textiles that make up this pack have a far more rugged feeling than the bodies of many of the packs we have tested, and we love the combination. We never felt uncomfortable running in this pack, even when we maxed out its 6-liter capacity. The hydration bladder includes well-engineered elements to ensure a slosh-free run, making this bladder one that we want to use in every single one of our packs.
The Dyna 6 is a bit heavier than others, contributing to its lower ranking in the volume-to-weight ratio metric. The internal frame adds to its overall weight, but this feature also helps keep your gear snug against your body while running. The front closures are a bit tricky to use at first, but once you get the hang of them, they're just as simple, if not more functional, than many other closure systems we've tested. If you're in the market for a mid-range capacity vest with features truly built for gritty adventures, this is most likely the perfect option for you. And yet, if you seek the best volume-to-weight ratio, the Nathan Pinnacle 12L will save you a few ounces. Or just in between the two is the mid-capacity Salomon Active Skin 8, which is far less rugged but has a better volume-to-weight ratio and an equally great fit — and an even lower price.
Our lead tester finishing the grueling and muddy Catalina Island Trail Marathon while testing the rugged Dyna.
Credit: Ally Arcuri
Compare Products
Putting in the miles to help determine the best running hydration packs for every use case.
Credit: Ally Arcuri
How We Test Women's Hydration Packs for Running
We couldn't wait to get running immediately upon receiving a box full of hydration vests designed specifically for women. In addition to rotating through the vests to ensure equal in-depth testing time on the trails, we wore them around our homes and parks to get to know them better. We specifically loaded each pack up with the same amount of gear and voice-dictated notes into our smartphones while we ran, hiked, and even post-holed through the snow. We paid particular attention to comfort, tested all their features, assessed their hydration systems, measured the volume-to-weight ratio to determine storage capacity, and even critically evaluated the pockets. A few of the hydration packs in our roundup were uncomfortable immediately. Still, we toughed it out and allowed our skin to chafe so that you can be certain that you're receiving unbiased, authentic, and exhaustive evaluations.
Our testing of hydration vests for running is divided across five rating metrics:
Comfort (30% of overall score weighting)
Features (25% weighting)
Hydration System (15% weighting)
Volume to Weight Ratio (15% weighting)
Pockets (15% weighting)
We have to test how bouncy each vest is when filled with water. What better way to do it than by enjoying a mountain top dance break?
Credit: Ally Arcuri
Why Trust GearLab
Our women's running hydration pack review is led by Ally Arcuri, an exercise specialist and experienced ultramarathoner. Ally remembers buying a CamelBak made for children back in the mid-2000s to satisfy her trail running needs in Lake Tahoe, CA. Since then, she has run her way across the beaches of Southern California and Mexico, the Rockies in Colorado and Wyoming, the deserts of Utah, the streets of Chicago and New York City, and most recently, the forests of the Pacific Northwest. According to her loved ones, Ally drinks more water than humanly possible, so, of course, she is an authority on testing hydration packs. Ally earned her bachelor's degree in kinesiology and has a 200-hour Yoga Teaching Certificate, so she has a keen eye for proper posture and biomechanics. When she isn't traveling, you can find her teaching elementary school P.E. in San Luis Obispo, CA.
The Nathan Vapor Airess takes a customizable fit to a whole new level.
While not our favorite running back, the Tempest is awesome for hauling a ton of gear while hiking.
Testing these vests involved lots of snacks.
We examined every pocket and put every feature to the test before logging many miles with each pack to offer a full and accurate evaluation.
Analysis and Test Results
To ensure a fair trial for each hydration pack we chose to test, we ran a ton. We usually run a lot, but with these packs on our backs, we ran even more. We spent months testing, retesting, and evaluating each one. We bagged peaks, ran through dense forests, and surveyed each vest individually before bringing them together in a head-to-head competition. After we exhaustively tested each pack, we compared them to each other over a variety of metrics. We analyzed the comfort and fit, the intelligence and functionality of the hydration system, available features, and ease of use. We weighed each vest and assessed their maximum storage capacities, and you know, we explored the depths of each pocket. We awarded each contender a specific numerical score in each metric. We encourage you to read on to determine which female-specific hydration pack for running has the potential to be your everyday sidekick.
What's the Best Value?
It's no secret that hydration vests can often cost a pretty penny and then some. While many of the pricier vests offer a more comfortable fit, more features, and more moisture-wicking material, we did not find this true across the board. There are rugged and durable options in the lower price ranges that truly impressed us. We were pleased to find that the divergent prices don't necessarily mean you get a lower quality or lower-performing hydration pack just because you spend less.
The AiRunTech hydration belt isn't a GearLab favorite, but if you are on a strict budget and looking for a device that can carry essentials and a bit of water, the value here is solid.
Credit: Ally Arcuri
The vest that provides the most on a budget is the Salomon Active Skin 8. This comfortable, breathable, and well-featured pack is well-priced and received some of our highest accolades. The Nathan Trailmix 7L is another well-engineered, comfortable running pack with smart pockets and a thoughtful hydration system. Though simply designed, its features and price tag make it a worthy budget buy. Finally, the REI Co-op Swiftland 5 is another pack offering function and affordability (for a more in-depth evaluation, visit our men's review — the only distinction between the two is size). If you prefer to hydrate by flask, the Ultraspire Momentum 2.0 - Women's offers a unique take on bottle storage at a highly affordable price tag (although no UltraFlask 550
bottles are included).
The flasks of the Ultraspire Momentum 2.0 ride a bit lower than we like, but the upper bungees help to create a reliable hydration system.
An example of a strong and sturdy front closure.
The front of each pack is a thoughtful mix of storage and suspension tools to help achieve an individualized fit while comfortably carrying the essentials you'll need on the go.
This time around, we added some hydration belts to our testing routine. While neither belt truly shined, it's difficult to ignore the value they offer in terms of versatility. Notably, the AiRunTech Running Hydration Belt is an incredibly affordable belt that can fit a few necessities and not much else. With a small overall capacity, the AiRunTech belt is perfect for short, easy runs or dog walks when you need somewhere to stash your phone. On the other end of the belt spectrum, we have the more maximally-styled Osprey Tempest 6. Neither belt is ideal for running, but both, most notably the Tempest, can easily be used for hiking, biking, and even rollerskating endeavors. A unisex hydration belt, like the Raide Research LF 2L reviewed by our men's tester, may prove a better option to consider if you are keen on adding a waist pack to your gear closet.
The Tempest isn't an overall high-scorer in terms of running, but it is versatile enough to be considered a good value.
Credit: Ally Arcuri
If you don't mind spending some cash for an even more comfortable ride, it's worth it to invest in the Nathan Pinnacle 12L. The Pinnacle is supple and breathable with anti-chafe technology and a whole lot of storage space. If you want an ultra-soft vest, check out the silky Salomon ADV Skin 12 The ADV Skin offers soft flasks, the option for a hydration bladder, and an equally tough 12L capacity. Either pack will serve you well over the long haul, which is also a solid way to approach value.
Running packs all offer different pros and cons. Our job is to take each one to its limits to help determine which will best suit your running needs and preferences.
Credit: Ally Arcuri
Comfort
Comfort is one of the most valuable components for assessing running gear that is intended to be worn for long periods of time. We measured comfort by running in all of the hydration packs for many miles.
Even for those of us who love to run, running is hard. We wanted to evaluate each vest's ability to remain comfortable when the terrain and mileage are grueling. We spent months testing through myriad weather patterns to ensure each hydration pack got a fair trial on the trails. We assessed each pack's comfort on cold days with long-sleeved layers, on rainy days atop our favorite running jackets, and on hot days in cropped tank tops with the packs directly against our skin.
We made sure to test each hydration vest in a variety of climates to ensure that the information we provide you is the best and most relatable.
Credit: Ally Arcuri
Even the more rigid and toughly constructed packs were generally quite comfortable, which is a huge win for female-specific running vests as a whole. We tried each pack on with different hairstyles to see if any vest pieces had an appetite for human hair (unsurprisingly, Velcro LOVES to get all wrapped up with long hair). We even made sure to test each vest with a small necklace on to see if that interfered with its comfort at all.
We love so many things about the Nathan Pinnacle 12. But we despise how this triple layer of Velcro was constantly snagging our hair.
Credit: Ally Arcuri
We noticed a trend amongst the hydration packs that scored well in this heavily weighted metric. Three of our top contenders are made of supple and forgiving yet contour-hugging textiles that wick away moisture and stay in place. Even though most hydration packs for running are frameless, some offer more boning and ribbing than others. Across the board, the more comfortable the vest, the less structure it has. Some vests, like the Salomon Active Skin 8 and the Salomon ADV Skin 12, have exceptional breathability, which also adds to well-rounded comfort.
Catching the sunrise atop a mountain is one of life's simplest joys. With a super hauler pack, like the Salomon ADV Skin 12, you can enjoy your breakfast and the view without missing a beat.
Credit: Ally Arcuri
We enjoyed the understated comfort of the Ultimate Direction Ultra Vesta 6.0. The Ultra Vesta is constructed of highly breathable nylon mesh and offers plenty of cords and bungees to adjust the pack to fit the specific shape of your body.
The Ultra Vesta 6.0 comes equipped to be comfortable as you climb mountain peaks and rip around coastal bluffs.
Credit: Ally Arcuri
The Naked High Capacity is unlike any other hydration pack for running we tested. It offers great comfort with a more streamlined and tight fit. Instead of wearing your hydration vest over your clothes, the Naked vest is essentially worn as an additional garment, hence the name. Choose your size wisely if you opt for this svelte running vest. You'll love its softness and the way it offers extra breast support when it is zipped up. We originally tested the Naked vest years ago, and we still choose to run in it weekly (at least). This vest is still going strong with functioning zippers and elastic after many trips up mountains and through the washing machine. In a recent update, they've also added a “speed” zipper to make it easier to take the vest off and on, as well as a reflective logo for visibility at night.
The Naked HC fits more like a garment than a piece of a gear, making it a vest that we loved to wear on especially warm days.
Credit: Ally Arcuri
The Salomon Active Skin 8 and Salomon ADV Skin 12 are made of lightweight ripstop material that provides stretch and comfort in all of the right places. The bungee and hook closure systems on the front are comfortably unintrusive and flexible on both packs. This system allows you to tighten the pack to ensure the least amount of bounce possible, but the thin cord bungees mean you can still breathe easily without noticing any restrictions.
The bungee closure system of the Active Skin 8 is soft and stretchy, which adds to this vest's overall comfort.
Credit: Ally Arcuri
Features
Features is a catch-all type metric that we use to define all of the bells and whistles included on a particular hydration pack for running. We tested this initially by exploring what each vest offers in terms of specific storage accessories and safety features. We took each vest and its features out into the field and engaged them in a side-by-side comparison. We evaluated the features promoted by each pack's manufacturer and tried them out in various ways.
We love that most of the vests have added safety features. In particular, our favorite component is the safety whistle. We tend to pack a lot of safety gear when we trek into the mountains, so it is a real treat to have a whistle included. We blew each whistle with all our might and found the one included on the Osprey Dyna 6 to be the loudest and most reliable. Furthermore, the Nathan Pinnacle includes a covertly stashed, loud whistle that could attract attention deep in the trails if you find yourself in a pinch.
Each vest offers different safety and comfort features, though most provide safety whistles, zippered pockets, and external compression bungees.
Credit: Ally Arcuri
We evaluated each hydration pack's trekking pole-holding system. The more secure the holders, the better we felt running with our poles — no big surprise there. Both the Osprey Dyna 6 and the Nathan Pinnacle offer secure and designated spaces for this, making them two of the most comfortable packs to use with your favorite trekking poles. The Black Diamond Distance 4 features a unique Z-storage solution for trekking pole storage. This pack utilizes a loop and bungee system that can be stashed into specified pockets when not in use. Being able to attach large poles diagonally across the back of the pack — like we did on the BD Distance 4 — is a comfortable way to go. We conducted our testing with a particularly large and clunky pair of poles and ultimately found such options to be an attribute. We strung our poles up in different ways as each pack's design allowed to find the most comfortable way to haul them. The only packs we tested that lacked a trekking pole carry solution were the Nathan Vapor Airess Lite 4L and the two hydration belts.
Helpful bungees on the Ultra Vest 6.0 provide secure storage for your trekking poles or anything else you want to tether to the exterior of your pack.
Credit: Ally Arcuri
We observed that many of the packs have reflective elements to ensure visibility while running in dark or hazy conditions. The rise of adventure races and overnight ultras makes small details like this vital to staying safe in the backcountry. Reflective details are also paramount for runners who like to be out at dusk or dawn. If you tend to run in low light conditions, ensure that you opt for a pack that has all of the features you need and also includes reflectivity for safety.
The reflectivity of the Pinnacle 12 adds an additional safety feature that we love.
Credit: Ally Arcuri
Hydration System
Some runners love soft flasks while running; others prefer a hydration bladder. No matter your preference, we can all agree on one thing-- hydration matters! Some hydration packs for running come with soft bottles, and others come with bladders. Most notably, each and every hydration pack for running offers the option to run with bottles, a bladder, or both. We love to see most hydration bladders being made with a fold-over closure system. This style of closure is better at preventing leaks. The slide-across clips all have holes to secure Velcro loops through to maintain the thinnest fit possible against your back.
While assessing hydration systems, we were ruthless in our observations. We are serious runners, and a leaky bottle could truly lead to our unraveling while deep in desolation; running out of water is a run ruiner. To allow each hydration system a fair shake, we ran with each pack as intended to begin. After each maiden voyage, we ran with our hydration bladders half full without extra gear to assess the sloshing of each system. We didn't encounter much sloshing with the soft flasks, though they are definitely not all created equal. Soft flasks that utilize more severe shapes tend to be the easiest to get in and out of the pockets at an aid station or at your own kitchen sink.
Though not all flasks are the same, if you want a slosh-free ride, flasks are superior over bouncy hydration bladders.
Credit: Ally Arcuri
As we've already discussed, the Salomon ADV Skin 12 is notable because, while it comes with soft flasks, it also offers the option to use a hydration bladder. Even when loaded with both hydration systems full of liquid, this pack remains comfortable with minimal sloshing. The magic exists within the fact that neither of these systems is superior in this pack. With both systems functioning equally, the system you choose comes down to personal preference. This is true about all hydration systems. If you know that you want to stash your phone and nutrition in your front pockets, a hydration bladder might be your best bet. If you want an easy-to-refill hydration system, front-facing bottles might provide the ease you are looking for.
For some runners, front flasks might make the most sense. For others, stashing a hydration bladder in the back of your pack might be the most convenient option.
Credit: Ally Arcuri
Nathan employed an hourglass-shaped, insulated bladder in the Pinnacle 12L. This bladder style is comfortable and performs awesomely when your gear is stowed in the back of the pack, but without gear, this shape still sloshes like the less contoured ones. Some hydration packs for running are thoughtfully designed to include a magnet system. There will be a small magnetic clip on the hose and a corresponding one on the chest strap or ribbing. This addition helps place your hose, whether you want it looped up towards your mouth or hanging down across your chest. Options with this magnet included earned higher marks due to their sheer convenience.
Some hydration hoses are longer than others. Ultimately, it is up to you to determine what kind of hydration system best suits your needs.
Credit: Ally Arcuri
Our biggest observation about soft bottles is that they have to be placed just so to be functional while running. Unlike a hose, which can be grabbed and placed in your mouth without even looking down, the bottles require more attention. We found that some bottles didn't seal well and leaked. Others had to be fully removed to drink from them. Because of the tight-fitting vest, the soft flasks of the Naked HC have minimal opportunities for bouncing. Since this pack rides higher than average, the mouthpieces are also always just within reach. We found the same technology in play with the Ultimate Direction Ultra Vesta and Mountain Vesta.
Some soft flasks ride higher than others, which takes some getting used to, but provides much-needed hydration whenever you want it.
Credit: Ally Arcuri
Volume to Weight Ratio
We used a volume-to-weight ratio to fairly measure each hydration pack's storage capacity relative to its weight. Since hydration vests tend to be made of different textiles and components, we use this equation to assess each gear-hauling capacity accurately. We divide the carrying capacity (liters) by the weight (ounces) to calculate this ratio. The bigger the number, the higher the score, but if you know that you want a vest to carry only what you need, it is worth considering some of the lower scorers in this metric. If you know that you want a minimalistic pack that only holds the essentials, a powerful volume-to-weight ratio might not be the most important element to you. Conversely, if you want a super lightweight pack that can carry everything you need for a full day in the backcountry, this metric will be super useful for you.
The Pinnacle has a ratio that is bigger than most. However, it weighs in a bit higher than average. Still, its volume-to-weight ratio is the best in our roundup because of how much gear it can haul. The Ultimate Direction Mountain Vesta scored lower based on numbers alone, but if you want a super-hauler pack, it's worth looking into, as is the Ultra Vesta. It may sound like we are splitting hairs, and in truth, we are — all in an attempt to separate the good from the great.
While not an overall high scorer this time around, the Mountain Vesta 6.0 offers multiple high-capacity pockets for stashing double-digit mileage-worthy snacks.
Credit: Ally Arcuri
Another element we noted while assessing this ratio is the weight distribution of each pack. Some hydration packs for running fit like mini backpacks with pockets on the front straps. Others fit more snugly, like a vest. Overall, we found that the apparel-like, vest-structured options had better weight distribution for running. To measure this, we stuffed each vest full of more gear than we could need for a day on the trails. As we ran, we noted any bouncing, joint aches, or changes in gait patterns caused by wonky weight dispensation. Even with their exceptional carrying capacities, the Nathan Pinnacle, Ultra Vesta, and Salomon ADV Skin 12 were the clear winners. These vests seamlessly distributed their 10-12+ liters of gear so that we never felt weighed down or off-balance. The weight distribution of the Naked HC, Salomon Active Skin 8, and Osprey Dyna 6 are incredibly well-designed as well, allowing you to comfortably carry everything you need, though those latter three packs offer a less apparel-like fit.
We love the snug fit and intelligent weight distribution of the Osprey Dyna 6.
Credit: Ally Arcuri
The REI Swiftland 5 surprised us by being super comfortable and freeing despite its poor ratio. It is a mini backpack-style vest, but with strong straps and a haul-bag-like main compartment, it stays snug and sits evenly during grueling trail days.
The REI Swiftland is a budget buy that will keep you relatively happy on the trails.
Credit: Ally Arcuri
Pockets
Pockets are important, and we love evaluating them. We went far beyond simply counting the pockets of each hydration pack for running, though we did that, too. We utilized each pocket for different items as we ran, making sure to switch up our systems every so often. We analyzed how accessible each pocket is on the move, which are safe for stashing your valuables, and which are best for providing easy access to outer layers when the weather turns.
Our most pocket-heavy vest is the Nathan Pinnacle 12L, which boasts an impressive 14 total pockets. As is the case with the Pinnacle, we discovered that vests with well-dispersed pockets generally offer better weight distribution throughout the vest, ultimately leading to better comfort. The number of pockets on the Pinnacle is awesome for keeping belongings organized. Having a pocket dedicated to gels, one for electrolyte tablets, one for our handkerchief, and one for our phone up front makes grabbing and going easy. The Salomon ADV Skin 12, Ultimate Direction Ultra Vesta 6.0, Salomon Active Skin 8, and Osprey Dyna 6 are other great examples of this balance. Some smaller packs, like the Naked High Capacity, may offer less overall capacity, but they do a great job of distributing the weight across the body and allow for simplified flexibility in placement based on preference.
A quick glimpse of some of the many pockets for hire on the Pinnacle 12L.
Credit: Ally Meller
Even though the Ultraspire Momentum 2.0 wasn't the highest scorer overall, the pocket structure of this pack is worth swooning over. They are uniquely placed with creative closure options. Since this vest provides flask “holsters” in the lower portion of the back panel, the front straps are fair game regarding gear storage. The front pockets do make great flask holders, so it is up to you how you want to configure your gear. The front pockets feature shock cord closures, which allow for comfortable and safe storage. The pocket placement of this unisex vest does a fantastic job of allowing a full range of motion movement as you run — even when the pockets are fully loaded with snacks.
The Ultraspire Momentum is covered in pockets that can stash enough gear for a moderate-length trail adventure.
Credit: Ally Arcuri
How to Pick the Best Hydration Pack for You
Let's break down some of the nuances of finding a running hydration pack to ensure that you find the one that is going to support your needs and best fit your running style.
Size and Adjustability Features Ensure the Perfect Fit
Finding the right fit is the most important element of hydration pack success. Since the repetitive movements of running can lead to chaffing, it is important to ensure you purchase the most appropriate size for your body. Most manufacturers offer typical American sizing, small through large; the straps and bungees allow the fit to begin imprecisely, so you'll adjust accordingly. To determine your size, measure your bust and waist and reference the size charts on the manufacturer's website. Classic cinch-strap and horizontal clips are the most basic and common options for securing your sizing. Easy adjustments during a run are essential because as the hydration bladder empties and snacks are consumed, the shape of a frameless pack changes, making cinch straps and cords valuable for maintaining a snug fit.
Bungees like these are easy to cinch mid-run as your water supplies dwindle.
Elasticized bungees and compression straps a the sternum and torso are used to ensure a perfect fit.
Consider Safety and Easy-Access Features
As technology advances, ultra-light materials and new features are becoming more accessible in running gear, which is exciting for weight-conscious runners - and those of us who want to bring everything without feeling weighed down. Safety features in hydration packs, such as built-in whistles and reflective stripes, are particularly important, enhancing visibility and providing some aid in emergencies. Easily accessible attachment points for quick-draw items like trekking poles and lights further contribute to runner safety and ease of use during runs.
Large back pockets like these make it easy to carry an extra layer, a robust first aid kit, a space blanket, and extra food, which can significantly improve your backcountry safety.
Credit: Ally Arcuri
Which Hydration System Works Best for Your Needs?
The hydration system in your pack is crucial for sustaining you mile after mile. Some packs accommodate only one system, either hydration bladders or bottles. Others have the flexibility to allow for both. The choice between the two options ultimately depends on personal preference and comfort. When properly placed in the innermost pocket of your pack, a rear hydration bladder flattens and fits comfortably against your back. While hydration bladders are excellent for carrying a lot of water, they only hold one liquid at a time and can be cumbersome to refill mid-run. Chest bottles are a popular and accessible way to carry both water and electrolyte drinks, especially in the backcountry. Typically made from soft, BPA and PVC-free plastic, these soft flasks fit into front pockets on your vest and can be secured with bungees or elastic, offering mouthpieces ranging from straw-like sippers to athletic spouts. Convenient for shorter runs, these flasks often hold 500mL - 650mL each.
Most packs include only one hydration system with purchase. However, they are almost all equipped to utilize the other, creating much-needed versatility.
Credit: Ally Arcuri
What Do You Need to Carry?
We are all about pockets when it comes to running gear. Specifically, we love a high-functioning, well-placed pocket. Every single pack tested offers something in the way of pockets. Most hydration packs have front and back pockets, which can be used as your heart desires. Each runner has a different system and different particularities when it comes to which gear should be stashed and where. Running-specific hydration vests are often designed with accessible front pockets and cavernous back pockets, enabling runners to grab important items easily without stopping. Meanwhile, the larger rear pockets can be great for lesser-used items, like extra layers, first aid kits, and more. We encourage you to sort out the details of what works for you and purchase your pack based on those preferences.
Runners come in all shapes and sizes. Since hydration packs do too, you'll be able to find one that best suits your running style and needs.
Conclusion
Many day hikers are moving away from using small backpacks and are dipping their toes into the world of the more form-fitting hydration vests like those we tested. Hydration vests, especially those made specifically for female runners, offer svelte profiles and plenty of mobility for the gnarliest adventures. While we assessed each vest through the lens of an adventure runner, we wholeheartedly believe that anyone looking to log miles comfortably will find a hydration vest made for them. From minimalist styles to those that can carry everything but the kitchen sink, we love watching hydration pack technology expand upon itself. We tracked each mile, nagging detail, and sip of water to bring you the most relevant and reliable information about some of the most popular women's hydration packs for running on the market.
