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Two of the best ways to improve your next backpacking trip are to carry less weight and distribute that weight more comfortably. The right backpack will have all the room and organization you need while conforming to your body like a gentle hug.
To find that perfect pack, we have taken hundreds of trips, hiked thousands of miles, and packed and repacked our backpacks countless times. From High Sierra passes to sweaty Appalachian slogs, each pack is evaluated on multiple testers across the key comfort and utility considerations.
Our overall favorite backpacking pack is the Osprey Atmos AG LT 65. This full-featured pack is by far the most comfortable we've worn. It has a suspended mesh back panel that wraps securely onto the hip belt. The hip belt hugs your hips, even when the waist belt isn't cinched tight. You have to try it yourself to fully grasp just how comfortable this pack is.
If you're after weight savings, we also love the Granite Gear Blaze 60. This backpack is incredibly comfortable, capable of carrying heavy loads, and weighs only three pounds. We love that the brain and hip belt can be removed and combined into a fanny pack for day hikes.
Those looking for a deal should check out the REI Co-op Flash 55. This pack is lightweight, comfortable, and affordable. REI recently released an updated version with a non-fluorinated DWR coating, which we link to in our review.
Editor's Note: On November 16, 2025, we added five new backpacks to our lineup, including four models under $200.
The Osprey Atmos AG LT 65 is our favorite overall backpack for backpacking. It is the streamlined version of the standard Osprey Atmos AG 65, which we think is a great pack even though it's a little too heavy to be perfect. The Atmos AG LT, on the other hand, is about a half pound lighter than the standard Atmos, making it that much closer to perfection. This pack is extremely comfortable. It features a suspended mesh back panel that rests against your back, creating an air channel between you and the pack and allowing for ample ventilation. But that's not where the back panel design ends. The trampoline mesh that's on the back panel also wraps around onto the hip belt. This feature is what truly makes the pack unique. “It feels like the pack is giving me a hug,” one of our testers said. “I often dread putting on a heavy backpacking pack, but this load-hauling machine feels like the loving embrace of a close friend,” another tester continued.
SPECIFICATIONS
Measured Weight
4.2 lb
Advertised Volume
65 L
Weight per Liter
1.03 oz/L
Organization Compartments
Lid, front mesh pocket, side water bottle pockets, hip belt pockets
Access
Top, side
While we love most aspects of the Atmos AG LT pack, it may not be ideal for everyone. While this is a slimmed-down version of the Osprey Atmos AG 65, the Atmos AG LT isn't nearly as streamlined as the ultra-simple Granite Gear Blaze 60. We believe the Atmos AG LT strikes the perfect balance between the Blaze's ultralight simplicity and the feature-richness of the standard Atmos AG. However, the Blaze might be worth considering if saving even more weight is a good idea. On the other hand, if you're looking for more pockets and greater adjustability than the Atmos AG LT and the Granite Gear Blaze, we recommend checking out the Atmos AG 65. “The Atmos AG LT is the ideal mixture of simplistic design and ultimate comfort,” our lead tester stated. “I've worn lighter packs, and I've worn more feature-rich packs, and the Atmos is different than them all, in the best way possible,” they continued. If you're looking for the most comfortable backpacking pack for your next backcountry adventure, you'd be hard-pressed to find a better option than this.
The Granite Gear Blaze 60 is our favorite backpacking pack for those who don't need a ton of features but also don't want to fully make the leap into ultralight backpacking. The newest version of this model can comfortably support up to 50 pounds and only weighs 3.0 pounds. “I love the Blaze's practical features: A stretchy mesh front pocket, roomy hip belt pockets, and removable top lid,” one of our testers states. It also has a breathable back panel, a long front access zipper, and nine compression straps to handle variable loads. You can also remove the brain and the waist belt, which combine into a fanny pack for day hikes away from camp. “This bag has just about every feature you could ask for and nothing you don't need,” said our tester. “This is the pack I recommend to any friends who are ultralight-curious,” our tester continued. It's an impressive pack in both weight and weight capacity. A light pack allows you to keep your base weight low, but since the Blaze has such a robust suspension, you can comfortably carry a few luxury items, winter/climbing gear, or extra food for extended trips.
SPECIFICATIONS
Measured Weight
3.0 lb
Advertised Volume
60 L
Weight per Liter
0.80 oz/L
Organization Compartments
Lid, front mesh pocket, side water bottle pockets, hip belt pockets
Access
Top, front
While this backpack does many things right, there is no perfect pack for everyone. Some buckles on this model are small and hard to operate when wearing gloves. This isn't a huge deal, and the small buckles help keep the weight low, so we're okay with it. Overall, this isn't a high-tech, revolutionary pack, but the simple design is part of the appeal. The Blaze 60 keeps things simple, and by using some of the lightest and most durable fabrics available, it's light and strong. If on-trail comfort, gear accessibility, and adjustability are important to you, an alternative worth looking at is the Gregory Paragon 60. This model weighs only half a pound more than the Blaze 60 and features a trampoline-style mesh back panel, along with a free-floating hip belt that helps suspend the load. It's also one of the most adjustable packs we tested, with a design that allows you to extend the hip belt padding as you lengthen the straps.
The REI Flash 55 is an inexpensive, lightweight, and well-designed backpacking backpack. It weighs less than three pounds and can comfortably carry loads of up to 30 pounds. “I particularly love the Packmod system, which enables you to customize the pack for your needs by moving or eliminating virtually all external pockets and straps,” one tester states. Two “extra” side pockets exist between the water bottle and the front stretch pockets. These extra pockets are super handy and essentially double the external storage capacity. The side bottle pockets are also the most easily accessible in the group. They sit low on the pack, making it easy to grab and replace your bottles with one hand. Since water bottles are placed in these pockets vertically, your swinging arms won't hit them as you walk, either.
SPECIFICATIONS
Measured Weight
2.8 lb
Advertised Volume
55 L
Weight per Liter
0.81 oz/L
Organization Compartments
Lid, front mesh pockets, 2 side pockets per side, hip belt pockets, shoulder strap pocket
Access
Top
Lightweight packs are often less durable, less supportive, and pricier. We love that the Flash 55 isn't expensive, but we have some concerns about the durability of the thin fabric. The material isn't as abrasion-resistant as some of the heavier-duty packs we tested. That said, we've seen this model last for 2650-mile thru-hikes. It is durable enough; you simply need to be mindful of how you use it. “Just don't drag it against rocks, and it will last a long time,” as one tester puts it. Additionally, if you plan to carry more than 30 pounds, you should select a larger pack with a more robust suspension. If you're searching for a lightweight pack to carry heavier loads, take a look at the Ultralight Adventure Equipment Catalyst. At 2.8 pounds and 75 liters, the ULA packs an impressive weight-to-size ratio ideal for extended hauls. However, the Catalyst costs significantly more than the Flash. So even with the Flash's minimal shortcomings, this modular pack has a lot to offer at a modest price.
The REI Co-op Trailmade 60 is an excellent choice for a budget backpacking pack, and it's one of the most size-inclusive packs we've seen. It comes in two sizes: M-XL (hip belt spans 32-42 inches) and XXL-4XL (42-52 inches). Both pack sizes feature an adjustable torso size that accommodates torsos ranging from 17 to 21 inches. (REI also makes a women's version of the Trailmade.) This pack has everything you'd need for a successful backpacking trip. Its many pockets include large side water bottle pockets, comfortable shoulder straps and hip belt, a top lid with zipper pockets, and a sleeping bag compartment with a front access zipper. It's also made with thick recycled nylon materials that are well-equipped to withstand daily abuse on the trail.
SPECIFICATIONS
Measured Weight
2.8 lbs
Advertised Volume
55 L
Weight per Liter
0.81 oz/L
Organization Compartments
Access
Top, front
The drawback to this pack is its lid design. “I love the large pocket on the lid, but the lid itself is sewn onto the pack, so you can't remove it or adjust it to fit over a larger load,” our lead tester noted. We don't think this is a dealbreaker, but if adjustable buckles were attached to the lid of the pack, it would be easier to make it sit balanced when the main compartment is stuffed to the brim. If you want to forgo the lid entirely for a minimalistic design, check out the Mountainsmith Scream 55. Still, even when we packed the Trailmade 60 full during testing, we could still physically fit the lid over the top. So, this minor detail is only an inconvenience. We think this is a fantastic budget buy, especially considering the massive amount of adjustability it offers.
The Teton Sports 55L Scout is our pick for a truly budget backpacking pack. At such a low price point, our expectations were low when testing this model. And while it didn't blow us away, it performed better than other similarly priced packs. At a price that's less than half that of some other packs in the review, this is a good option to determine if backpacking is an activity you would enjoy. It's also a great choice if you go backpacking infrequently, like once every few years — though it's worth spending more on an option like the Trailmade 60 if you backpack more often. Think of the 55L Scout as a sampler to help you identify features you like and dislike.
SPECIFICATIONS
Measured Weight
4.5 lbs
Advertised Volume
55 L
Weight per Liter
1.30 oz/L
Organization Compartments
Lid with interior and exterior pockets, zippered side pockets, hip belt pockets, sleeping bag compartment
Access
Top, bottom
While the 55L Scout fills the role of a true budget backpack, there are some trade-offs to consider with the price. This pack just wasn't as comfortable as some other models we tested. Our lead tester stated, “This pack left my shoulders sore after carrying heavy loads, and I noticed the frame doesn't do a great job of transferring the pack weight onto the hip belt.” When you first put on this pack, it feels comfortable, and you wonder why anyone would ever pay more. But after a few hours with heavy loads, you can appreciate the value of higher-end suspension designs. It's always a good idea to travel light when possible, especially with this pack. Since the buckles and padding are significantly larger than those of other models, the 55L Scout felt bulky. Weighing over 4 pounds, this is also one of the heaviest we tested. The Kelty Outskirt 50 is also worth checking out, as it weighs less and is in a similar price range. Overall, the Teton Sports Scout feels very durable and can carry a load reasonably well. We recommend it for a first overnight trip and for anyone who prefers value over perfection.
Tipping the scales at just 2.8 pounds, the ULA Catalyst borders on being an ultralight pack and is an excellent option for lightweight enthusiasts. Although this pack is incredibly light for its massive 75-liter capacity, it comfortably carries a substantial load for extended periods between resupplies. ULA packs are well-known in the thru-hiking community and are loved for their features, which long-distance backpackers want, such as massive zippered hip belt pockets, a large stretchy mesh front pocket, and huge side water bottle pockets that can each hold two tall one-liter bottles. Heck, for an upcharge, they'll even embroider your trail name on the pack. If you're so inclined, there are many customized options, including some fun color combinations. This is all great stuff, but when all is said and done, as our lead tester states, “This pack is simply great for being lightweight, capable, comfortable, and feature-filled.”
SPECIFICATIONS
Measured Weight
2.8 lb
Advertised Volume
75 L
Weight per Liter
0.60 oz/L
Organization Compartments
Front mesh pocket, side water bottle pockets, hip belt pockets
Access
Top
We downright love this pack, but we understand it might not be for everyone. If you appreciate the breathability and ventilation of a trampoline-style suspension, you're better off looking at a model such as the Osprey Atmos AG 65. For those who want a more breathable back panel in a lighter weight than the Atmos, check out the Osprey Exos 58. Although both of these packs weigh more than the Catalyst, we can't deny the comfort of a suspended mesh back panel. The Exos is quite light, considering all its features. Another consideration about the Catalyst is that it lacks a brain on top. That said, we still found ample storage in the external mesh pocket for on-the-go items. If you're looking for serious capacity without added weight, this lightweight backpack is an excellent option and one of our favorite picks for long-distance hikes.
Osprey has always done a good job of marrying durability, adjustability, and large load comfort, and the Osprey Aether 65 is the perfect example. This pack is easily adjustable to dial in your perfect fit while out on the trail. You can easily access your gear with a sleeping bag compartment, a reinforced stretch “shove-it” front pocket, a large zipper for accessing the pack's interior, and a double-pocketed lid that keeps all the necessities just a zip away. “The back panel and shoulder straps are firm and supportive, remaining comfortable with loads up to a whopping 50 pounds,” our lead tester stated. As another one of our testers put it, “Though I never want to be carrying 50 pounds on my back, and I'm certain if my knees could talk they would agree, sometimes that's what you have to do. For those times when you have to load out a lot of gear, I'm glad the Aether exists.”
SPECIFICATIONS
Measured Weight
5.0 lb
Advertised Volume
65 L
Weight per Liter
1.23 oz/L
Organization Compartments
Lid, front pocket, side water bottle pockets, hip belt pockets
Access
Top, front, bottom
The main disadvantage of the Aether is that it weighs 5 pounds. Though it can comfortably handle loads many lighter packs couldn't dream of carrying, this pack is undeniably heavy, and it doesn't make 50 pounds feel light. For those who prefer to move light and fast, we also like the Gregory Focal 58. This pack is substantially lighter than the Aether, yet still holds up well under heavy loads. If you like the Osprey suspension system but want to save some weight, the Osprey Atmos AG LT 65 weighs a pound less than the Aether and is more comfortable. Although the Aether is more comfortable with extremely heavy loads, the Atmos is the most comfortable pack we tested for loads of 30-40 pounds. However, when we need to carry seriously heavy gear, there's no pack we've tested that's more comfortable to shoulder those loads than the Aether.
The Deuter Aircontact Core 65+10 is a great pack for those who want options for staying organized on the trail. If you want a specific pocket or space for everything while backpacking, this pack is for you. It features excellent organizational capabilities, including three separate access points to the main compartment. An interesting suite of features allows you to customize its setup. It features a sleeping bag compartment with a separate opening, which can be opened and included in the main compartment via an internal zipper. It also has two side compression straps per side, both of which are removable or reconfigurable. “I love how easy it is to stay organized on long backpacking trips with this pack,” our lead tester stated. This pack has pockets galore. The brain has two zippered pockets, and there are two more zippered pockets on the hip belt. On top of all this, the generously cushioned shoulder straps, lumbar pad, and hip belt ensure that a well-organized load of gear rides comfortably on your back all day.
SPECIFICATIONS
Measured Weight
5.2 lb
Advertised Volume
65 L + 10 L
Weight per Liter
1.11 oz/L
Organization Compartments
Lid with two zippered pockets, front mesh pocket, side water bottle pockets, hip belt pockets, sleeping bag compartment
Access
Top, front, bottom
Unfortunately, the Aircontact Core is only available in one size. Therefore, if your torso length is not within the 18 to 21-inch range, this pack won't fit you. If you're not within the 4-inch torso range of the Deuter, we like the REI Co-op Flash 55, which comes in four different size options, and each size can be fine-tuned. The Aircontact also has a forward-angled side water bottle pocket on the right side, but not on the left side of the pack. So, you'll only have access to one water bottle at a time. Still, these are minor issues for an overall great backpack that keeps you organized on the trail.
If you want to lighten your base weight without breaking the bank, we think you'll love the Mountainsmith Scream 55. This pack's minimalist design will have you on the trail before sunrise, and its reasonable number of pockets will ensure you don't misplace your gear in a labyrinth of pockets. The internal frame is comfortable in a no-frills kind of way, and it carries loads in a way that feels securely planted on your back. Thanks to its roll-top opening, it's easy to shove all your gear inside, roll the pack shut, and be on your way in no time. The roll-top closure also keeps your pack tightly compressed so it will be full and secure no matter how much or little you're carrying. The zipper can be completely unzipped, and the front panel flipped open towards the bottom of the pack, allowing you to access everything stored inside the main compartment. One tester noted, “The unique double zipper pockets on the front are large enough to fit everything I need throughout the day — lunch, snacks, a jacket, water filter, toilet paper, headlamp, sunscreen, you name it.” It can even carry loads up to 35 pounds.
SPECIFICATIONS
Measured Weight
2.8 lbs
Advertised Volume
55 L
Weight per Liter
0.81 oz/L
Organization Compartments
Access
Top, front
Due to its minimalist design, the positive aspects of the Scream 55 can be negative if ultralight isn't your style. There is no traditional stretch mesh pocket for quick storage and no lid, which means less organization or quick access to items. We also think the shoulder straps could be more padded. Lastly, this pack comes in only one size, with no torso length adjustment options, so it either fits or doesn't. If it doesn't, consider the highly adjustable REI Co-op Trailmade 60. Although it weighs a bit more, you are more likely to achieve a better fit with this model.
The Mountainsmith Scream 55 is a great choice for minimalist backpacking on a budget.
Credit: Sam Schild
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We tested this lineup of the top backpacking packs in various beautiful and remote places around the world.
Credit: Chris McNamara
How We Tested
For this review, we identified the key metrics essential to grading a backpacking backpack. Then we designed thorough and wide-ranging tests to perform in the field and the lab to fully explore each metric. We — and our friends — hiked all over with these backpacks, loaded with camping gear and food, noting what made them comfortable (or not). We combined field use (i.e., evaluating convenience on different types of trips with varying aims, gear, and climates) and lab testing (e.g., volume testing using thousands of ping pong balls and a volume measuring device calibrated with a 1-liter measuring cup and a large volume of water). We loaded them up with various gear and took to the trail on a series of adventures ranging from volcano mountaineering trips to alpine rock approaches and long thru-hikes. From the Appalachians to the Rocky Mountains to the Sierra Nevadas, we wore these backpacking backpacks on long and short trail days, testing and assessing their strengths and weaknesses along the way.
We tested models in this review with a focus on the following:
Comfort (40% of overall weighting)
Ease of Use (25% of overall weighting)
Weight-to-Volume Ratio (20% of overall weighting)
Adjustability (15% of overall weighting)
Loading up the REI Co-op Traverse 60 for a backpacking trip.
Credit: Sam Schild
Why Trust GearLab
Our wide and varied backpack review team is led by Sam Schild, a backpacker, trail runner, and mountain biker based in Colorado. He has backpacked the Pacific Crest Trail, Continental Divide Trail, Grand Enchantment Trail, Arizona Trail, and Colorado Trail three times, along with countless shorter backpacking trips. Also on our testing team is Adam Paashaus, another long-time guide and outdoor instructor. When Adam isn't thru-hiking with his family, you can find him trail running, rock climbing, planning his next trip, or scouting the next place to call home. And finally, Bennett Fisher wraps up our expert backpack testing panel. Bennett is a former gear shop employee, a graduate in outdoor product development, and a thru-hiker. He has logged over 6,000 miles of backpacking, including the entire Appalachian Trail, Pacific Crest Trail, and Continental Divide Trail.
We tested packs across mountain ranges, forests, deserts, grasslands, and coastal landscapes.
Analysis and Test Results
We put the entire lineup of contenders through thorough side-by-side comparison testing, assessing comfort, ease of use, weight, and adjustability. After researching the best backpacks for backpacking in terms of quality, innovation, and popularity, we purchased every pack we tested. When preparing for testing, we also considered what makes a great backpacking backpack. Here, we break down our findings by metric and dive into the nitty-gritty of what makes each pack worthy of consideration.
Worse Value
Better Value
What's the Best Value?
Backpacks for backpacking, like other outdoor gear, can be quite expensive. However, if you've ever hiked all day with an ill-fitting pack, you understand that pain quickly replaces any joy of saving money. Top dollar doesn't always equal top comfort, though.
REI Co-op Flash 55: This is the least expensive backpacking pack that still performs well enough for us to really recommend it. It's lightweight and full of features that can be added, moved, or removed as needed, all for a reasonable price. It's not the best with heavier loads, though.
REI Co-op Trailmade 60: For $180, you get plenty of pockets and multiple access points. This bag is extremely easy to use and accommodates sizes up to 4XL.
Teton Sports 55L Scout - While this pack is not that light or comfy, it is totally adequate for many shorter backpacking trips. A great entry-level bag that we recommend not overpacking.
Granite Gear Blaze 60: Offers outstanding performance at an average price, making it a worthy choice if you're able to spend a little more. We often see this pack on sale, making it an even better value. This pack does a better job than the Flash with heavier loads, too, making it a better option for newbie backpackers and others who want to carry some extra comforts on their backpacking trips.
The Osprey Exos 58 is a good value for a backpack with a comfortable and lightweight design.
Credit: Sam Schild
Comfort
When testing suspension, we assessed each model's shoulder straps, waist belts, back panels, and frame design. We considered how supportive each backpack is, how well it conforms to different body shapes, and its overall comfort. The waist belt and shoulder straps are crucial when picking a backpack, and the majority of issues that bother new backpackers are related to the shoulders, hips, and back.
Padded hip belts and shoulder straps are worth very little without a good suspension system to complement them. The pack's suspension, or frame system, includes the internal and external frame stays, compression straps, shoulder straps, and a hip belt. In short, the suspension distributes the pack's load across your shoulders, hips, and back.
Each person's body is unique, so our tests included a diverse range of users to gather a broad variety of data. When a pack seems to fit a specific body type best, we mention that in the review. We find the most comfortable packs fit the widest variety of body types, too.
The Gregory Paragon 60 remains comfortable over long days on the trail.
Credit: Sam Schild
After extensive testing with typical heavy backpacking loads, the Osprey Atmos AG LT 65, Osprey Atmos AG 65, ULA Catalyst, Osprey Aether 65, and Granite Gear Blaze 60 were the most comfortable overall.
The Osprey Atmos AG LT 65 and Osprey Atmos AG 65 have the same back panel, hip belt, and suspension design. Both of these packs offer a wildly comfortable experience and snug ride thanks to their trampoline-style suspension, which evenly distributes the load across the body. We never get hot spots on our backs or hips wearing either of these packs, even after extended travel in warmer conditions. One reason for the lack of hot spots is the heavily tapered padding in the straps and waist belt, which provides the thickest cushioning on the top of your shoulders, where you want it the most. At the same time, thinner padding in less important areas reduces chafing. At loads above 40 pounds, however, the Atmos models become less comfortable. These packs also have the most comfortable and supportive hip belt of any pack we tested. More on hip belts below.
The Atmos AG LT has the most comfortable back panel and hip belt design of any pack.
Credit: Chris McNamara
All of our testers agreed that the Blaze 60 was particularly comfortable, considering it can carry a heavy load in a super light, 3-pound package.
The Gregory Paragon 60, Gregory Focal 58, Deuter Aircontact Core 65+10, and Osprey Exos 58 each scored almost as well as our top-performing packs in the comfort metric.
The Atmos AG LT has a super comfortable suspension system, back panel, and hip belt, making it one of the most comfortable packs we tested for loads under 40 pounds.
Credit: Sam Schild
The best-performing contenders for heavier loads are the Osprey Aether 65, the Gregory Baltoro 65, and the Granite Gear Blaze 60. These packs utilize high-quality foam that provides a perfect balance of support and comfort. All of the shoulder straps offer top-notch ergonomics and slightly stiffer padding. While this rigid padding is marginally less comfy, you need it when you're lugging a heavy load because it won't compress. Each of these models offers subtle advantages that will help transfer the load to your hips and keep you moving toward camp in relative comfort. These advantages include a supportive suspension, foam stiffness, and well-designed shoulder straps and waist belts. The combination lands all of them in the load-hauler category.
The Granite Gear Blaze 60 has a stable back panel even without a trampoline back, and is among the most comfortable.
Credit: Sam Schild
The hip belt is one of the primary contributors to a comfortable pack, especially when it is well-loaded. Some are light and relatively soft, while others swivel and are well-padded yet rigid to carry heavy loads. Some packs, such as the Osprey Atmos AG LT 65, Granite Gear Blaze 60, Gregory Baltoro 65, Gregory Paragon 60, and Osprey Aether 65, allow the foam padding of the waistbelt to extend outward to accommodate larger waist sizes.
The Gregory Paragon 60's hip belt comfortabluy moves with you as you walk and the foam extends out to match your waist size.
Credit: Sam Schild
Trampoline or Suspended Suspension System
Trampoline-style or suspended suspension systems feature a tensioned mesh back panel (like a trampoline) instead of a more traditional, single-stay, double-stay, or “Y” shaped frame. These allow airflow between your back and the pack's load, reducing back sweat. More importantly, weight is distributed more evenly, producing fewer hot spots. The Osprey Atmos AG LT 65, Osprey Atmos AG 65, Gregory Focal 58, Gregory Paragon 60, and Osprey Exos 58 all have trampoline-style suspension.
The trampoline mesh back panel on the Osprey Exos 58 creates a comfortable and airy ride as you wear it.
Credit: Sam Schild
We like trampoline-style suspension systems for their breathability and weight distribution. However, not many trampoline-style harnesses can handle large loads of 45 pounds or more. Trampoline suspensions also position the load further away from your back, increasing leverage and reducing balance, which makes for a less comfortable overall carrying experience as the weight increases.
The Osprey Atmos AG LT 65 uses a suspension system where your back rests against a mesh panel suspended over a more traditional frame, making for a cooler and less sweaty back.
Credit: Sam Schild
Ease of Use
We evaluated ease of use by noting how simple it is to use each pack. In assessing ease of use, we pay particular attention to the design of the main compartment, pockets, lid, straps, and other unique attributes. We compared the number and location of pockets and how useful our testers found them to be.
We looked at each pocket and asked ourselves: “Does this pocket make my life easier and keep me more organized? Or is it just adding weight to the pack?” We also examined access points and evaluated whether they seem useful for retrieving items or if they're impractical to zip shut when the pack is full and are thus merely decorative.
We measured the internal volume of the main pocket and compared it to the manufacturer's claims. We also determined how well the pack's brain provides access to small items and whether those items stayed organized.
The REI Co-op Traverse 60's top lid has two zippered pockets and doubles as a day pack.
Credit: Sam Schild
To assess exactly how much space each pack had to store backpacking gear, we tested the internal volume of each pack using thousands of ping pong balls and a measuring cylinder calibrated with a 1-liter measuring cup and a large quantity of water. We filled every pocket of every pack with ping pong balls, then measured the total liters of the balls. We then recorded our findings and compared them to the manufacturers' claimed volume for each pack.
We measured volume using ping pong balls and a calibrated measuring container.
Most pack manufacturers are pretty accurate with their volume claims. However, there is some discrepancy in tabulating total volume: some companies count the volume of every pocket in their advertised volume, while others only count the main compartment.
Measuring the internal storage capacity of the Granite Gear Blaze 60 using our measuring cylinder.
Credit: Sam Schild
The largest discrepancies between advertised volume and main compartment volume were with the ALPS Mountaineering Cascade 90, REI Co-op Traverse 60, Deuter Aircontact Core 65+10, Osprey Aether 65, Osprey Atmos AG 65, and ULA Catalyst. Each of the main compartments in these packs is at least 15 liters smaller than its advertised volume.
The REI Co-op Traverse 60's main compartment measures 45 liters, though the pack is advertised as 60 liters.
Credit: Sam Schild
We considered the usefulness of other additional features and evaluated them in the field during real-world testing. We generally favor packs with a handful of straps for crampons, ice axes, sleeping pads, flip-flops, or other items because it adds to the pack's overall versatility. We awarded extra points for features that can be removed or customized for a more personalized user experience.
Overall Organizational Ability
For those who like an assortment of compartments and pockets for organization, the Deuter Aircontact Core 65+10, Granite Gear Blaze 60, and ULA Catalyst have particularly convenient pocket designs.
The Granite Gear Blaze 60's hidden front zippered opening accesses the main pack compartment without opening the top lid.
Credit: Sam Schild
These models offer a similar setup and exhibit our favorite organizational and pocket layouts. They provide excellent hip belt pockets, big water bottle side pockets, and a stretchy mesh “stuff-it” pocket that is excellent for wet clothes or carrying oddly shaped items like fuel bottles, a trowel, camp shoes, or a frisbee.
The Gregory Paragon 60 features a side access zipper, allowing you to grab items from the main compartment without opening the top lid.
Credit: Sam Schild
For folks who love to stay super organized, the Deuter Aircontact Core, Gregory Paragon 60, and Gregory Baltoro offer excellent gear access and the ability to get to your items quickly without removing anything. If you need a ton of space to store your bulky items, the ALPS Mountaineering Cascade 90 features the largest main compartment, along with ample external storage.
Top Lid Pocket (aka The Brain)
Every pack, other than the ULA Catalyst, has a top lid with a zippered pocket, and many of them can be removed and left at home to reduce weight. The top lid is one of the best places to store small items that require quick and easy access, such as sunglasses, sunblock, or bug spray. Many models also feature a separate small pocket on the underside of the lid, providing a secondary location to store small items that don't need to be accessed frequently, such as car keys.
The Osprey Atmos AG LT 65 has a massive top lid pocket you can access without opening the lid.
Credit: Sam Schild
Most packs have zippers on the front or back of the lid, which means it's not as easy to access the contents without removing the bag. Additionally, not all side-zippered lid pockets are the same. The sizable zippered lid pockets of the Osprey Atmos AG LT and Osprey Atmos AG 65 are next level, though. “This brain can fit everything but the kitchen sink!” one of our testers stated about the Atmos AG LT 65's top lid pocket. “Actually, I think it can even fit the kitchen sink,” they continued, joking, of course. “In all seriousness, this lid pocket is the biggest I've seen on a backpacking pack,” they concluded.
The Gregory Baltoro 65 also has a very wide opening zipper on its lid. While not quite as large as the Atmos, this top lid pocket can fit an entire day's worth of snacks, a jacket, headlamp, and more.
The Gregory Paragon 60 has many convenient pockets for organizing all your gear and easy access later.
Credit: Sam Schild
Pack Access
How easily you access the primary compartment on the backpacking pack is part of our Ease of Use metric, measuring how quickly you can grab a few items without unpacking the entire bag. As pack volume increases, access becomes more important because you definitely want to be able to find your toothbrush in your 70-liter backpack.
Getting a jacket buried in the middle of your pack is easy with the Aircontact Core's front zipper opening.
Credit: Sam Schild
While ease of access is important, too many features will add weight to the backpack. Don't select a pack solely for an elongated zippered access panel, especially if you will rarely use it. That massive zipper will add significant weight to the backpack. Additionally, many side access panels are difficult to close when the pack is fully loaded.
Weight Penalty — All additional pack features have a weight penalty. Consider your priorities before saying, “I want lots of access”. We hear that often only to witness folks go on several trips without using their side access panel but still carrying the extra weight from that burly zipper.
All the backpacking backpacks in our review are top-loading; many have a separate sleeping bag compartment with a bottom access zipper, including the Osprey Atmos AG and Aether, the Deuter Aircontact Core, the Gregory Baltoro, the Gregory Paragon 60, REI Traverse 60, and the ALPS Cascade. These openings provide access to a part of the pack that is difficult to reach from the top without unloading everything onto the ground first.
The Gregory Paragon 60 also has a zippered pocket to store and access your sleeping bag separately.
Credit: Sam Schild
Additionally, some packs have access to the main compartment through the front or sides. The ones in our lineup with this access are the Osprey Atmos AG LT 65, Granite Gear Blaze, Osprey Atmos AG 65 and Osprey Aether, Deuter Aircontact Core, Gregory Baltoro, Gregory Paragon, and REI Traverse.
Hip Belt Pockets
A pack with a good hip belt is critical; pockets can make or break a hip belt. We especially love the hip belt pockets on the Granite Gear Blaze 60, Gregory Baltoro 65, Gregory Focal 58, ULA Catalyst, and Osprey Atmos AG LT for their unrivaled size and ease of access. The Deuter Aircontact Core features waist belt pockets made of stretchy mesh, allowing them to fit even more than their appearance suggests.
The Atmos LT lets you be quick on the “snack drawer” when your 6-year-old needs all the motivation to keep hiking.
Credit: Chris McNamara
The Osprey Exos 58, on the other hand, has some of the smallest hip belt pockets we tested. Each pocket is barely big enough to fit a smartphone that is 5.9 inches tall, 2.8 inches wide, and 0.4 inches deep. Previous versions of this pack didn't have hip belt pockets at all, so these smaller pockets are better than nothing, but you can't cram as much into them as the models mentioned above.
The Osprey Exos has some of the smallest hip belt pockets of any pack we tested, but at least the newest version has hip belt pockets.
Credit: Sam Schild
Hydration
Almost all of the packs in this review have a location to store a hydration bladder where it should stay upright. You can expect the models with this feature to work with just about any brand's 2 to 3-liter hydration bladder.
Most bags have a dedicated hydration bladder sleeve inside the main compartment. Here you can see the one in the Flash 55, with the blue loop on top to keep your bladder hanging upright.
Credit: Sam Schild
Rain Covers
Rain covers are a practical addition to any backpacking pack. If the rain is falling for days at a time, unless you've lined your pack with a trash bag or packed your gear in dry bags, your stuff will get wet. A pack cover can only do so much to lessen this reality, but it helps prevent excess water from soaking into the pack fabric, which will weigh down your pack. The backpacks that include a rain cover are the Osprey Atmos AG LT 65, REI Traverse 60, Osprey Aether 65, and the ALPS Mountaineering Cascade 90.
The Osprey Atmos AG LT 65 has an integrated rain cover to keep your pack and gear dry in wet weather.
Credit: Sam Schild
Weight-to-Volume Ratio
The weight of the pack itself affects how heavy it feels on your back almost as much as the gear you're carrying does. This seems obvious to say, but a heavier pack will feel, well, heavier. While we aren't talking about ultralight packs here, we still think it's worth considering how much a pack weighs. A lighter pack will be easier to hike with, after all.
We measured each pack on our home scale to verify the manufacturer's claimed weight. Then, we calculated the weight-to-volume ratio of each pack. A smaller pack will weigh less because it's made with fewer materials, but if that means you can't carry all your backpacking equipment, then a few extra ounces might be better.
The Granite Gear Blaze 60 doees a great job of balancing weight and carrying capacity.
Credit: Sam Schild
The lightest packs in our review, by a significant margin, are the REI Flash 55, ULA Catalyst, Gregory Focal 58, Osprey Exos 58, and Granite Gear Blaze 60. These packs weigh in at 3.0 pounds or less and ride the line between backpacking backpacks and ultralight minimalist packs. The primary difference is that these models are more comfortable for individuals with a base pack weight of 20-25 pounds or less.
Interested in Ultralight Hiking?
This review focuses on non-ultralight packs designed for most backpacking trips, which involve carrying heavier loads and prioritizing comfort and functional features. If you're interested in going ultralight, check out our reviews of the best ultralight gear.
Testing the volume of the Osprey Atmos AG 65's main compartment, which has a relatively high volume-to-weight ratio.
Credit: Sam Schild
These lighter packs are excellent options for folks who want to go light but still want a comfortable and supportive pack with a frame and robust padding for heavier-loaded trips. A lower initial pack weight also helps with longer food carries or that first day of a week-long backpacking trip, when those seven days' worth of food is heavy no matter what the rest of your gear weighs.
It's worth noting that sometimes lightweight packs sacrifice load-carrying abilities and organizational features. If your backpacking setup is dialed, you may benefit from a lightweight pack; however, it will be less versatile. Packs that weigh more often have more pockets and a more robust frame, making a heavier load feel more comfortable. On the contrary, if you overload a lightweight pack that isn't designed for a heavy load, it won't be comfortable.
The Osprey Exos weighs under 3 pounds and is best suited for lightweight backpacking.
Credit: Sam Schild
Adjustability
To evaluate each backpack's adjustability and fit, we considered its overall ergonomics and the degree of adjustability in each model. We also looked at the range of torso lengths available. More sizes mean it could work for a broader range of users.
Mix and Match Sizing
There aren't many pack manufacturers that let you swap out waist belts and shoulder strap sizes to tailor your fit. But depending on your build, you may want a large frame and a medium waist belt. If this would be helpful for your body type, it is worth seeking out a pack from a manufacturer like Gregory, Osprey, REI, or ULA.
The REI Traverse 60 comes in different sizes for both torso length and hip belt, and you can easily adjust the torso length by 4 inches per size.
Credit: Sam Schild
Many packs we tested feature a way to adjust the torso length by moving the shoulder straps up and down. These include the Osprey Atmos AG LT 65, Granite Gear Blaze 60, REI Flash 55, REI Traverse 60, Osprey Atmos AG 65, Osprey Aether 65, Gregory Paragon 60, Osprey Exos 58, Deuter Aircontact Core 65+10, and ALPS Mountaineering Cascade 90, which all allow you to adjust the torso length vertically on the pack to dial in your perfect fit.
The Flash 55 has an easy-to-use torso adjustment feature to dial in the fit.
Credit: Sam Schild
The adjustment options of the Osprey Aether 65 are quite notable. While it may only have four inches of vertical adjustment, it also has adjustable shoulder straps and waist belt padding that help dial in your perfect fit while on the trail.
The Gregory Paragon 60 also features a very adjustable hip belt. Most packs allow you to adjust the hip belt size by simply changing the length of a webbing strap. With the Paragon, however, the cushioning for the hip belt can also be extended, allowing people with wider hips to still have cushioning where they need it.
The Gregory Paragon 60 allows you to adjust the shoulder harness height to dial in the perfect torso length.
Credit: Sam Schild
The Osprey Atmos AG LT 65 has roughly four inches of torso length adjustability. And, you can extend or retract the hip belt padding to get a super dialed fit on your waist and hip girth. This adjustment feature ensures that the already extremely comfortable hip belt design is as comfortable as possible for a wide range of body shapes.
The Osprey Atmos AG LT 65 allows you to adjust the length of the hip belt padding based on your actual waist size.
Credit: Chris McNamara
The Gregory Baltoro 65 and Osprey Atmos AG 65 also have a respectable amount of adjustment. They feature roughly four inches of vertical adjustment and are available in a variety of sizes. The REI Flash 55 is available in a unique extra size: a large torso with a small waistbelt, which is useful for those who are tall and skinny.
The right backpacking backpack can take you (and everything you need to camp) to some awesome places to sleep under the stars.
Credit: Sam Schild
Other Backpacking Backpacks to Consider
Granite Gear Crown2 60 - This is a minimalist pack at a good price. It weighs a little over two pounds, and if you travel light, it carries decently. That said, this is not the pack to load up as it quickly becomes apparent how those weight-saving cuts into the pack's comfort.
High Sierra Pathway 2.0 60L - This is a contender for best pack at or just under $100. It is not the most comfortable or the lightest, but totally adequate for shorter backpacking trips. We have seen it on sale for less than $70, which makes it pretty compelling if you only backpack a few times a year.
Loowoko 50L Waterproof - This is one of the cheapest packs we have ever tested. It has no frame and no frills and is just over two pounds. If you pack extremely light, like 20-25 lbs, you might be okay. Carrying loads any heavier, and the straps quickly dig into your shoulders.
Conclusion
A backpacking trip can be one of life's great joys, but without the right backpack, your next trip might be a pain, and that's a far cry from joyful. You can choose from various pack options, each tailored to a specific type of backpacker and hiker. We hope that our testing and analysis have helped you narrow down your choices, allowing you to select the best option for your needs and budget. Lastly, we hope your next backpacking trip is one to remember.
The Osprey Atmos LT 65 rests comfortably on your back, shoulders, and hips as you hike.
Credit: Sam Schild
Need help selecting your “Big 3” pieces of backpacking gear: pack, shelter, and sleep system? You can find your pack advice here, and we have had hands-on experience with backpacking tents, backpacking sleeping bags, and the coziest sleeping pads to complete your trio. Most backpacking packs are designed in a unisex manner to be comfortable for both men and women, but we do offer a separate review of packs designed specifically for women.
Testing backpacks in Colorado's Rocky Mountains in the fall.
