
Our Verdict
Our Analysis and Test Results
The Arc'teryx Alpha SV is ready for the most severe (that's the "SV") mountain weather you can find. This jacket is top-notch for a burlier level of exposure, so it doesn't top the charts across all of our metrics — that extra burl comes at a slight cost to weight and mobility.
Weather Protection
No question here, this jacket set the standard for weather protection in this review. Putting it on feels like you're sealing yourself into a bombproof bubble of warm and dry. The N100d 3L Gore-Tex Pro fabric is extremely burly, offering protection for extended use in severe alpine conditions. Wow. This jacket will keep pace with you on the most exciting ice, mixed, and high alpine routes.
Mobility and Fit
This is a much stiffer fabric than the rest of the jackets in this review—but it's also one of the strongest and most durable. And one would assume that this would come at great cost to mobility. However, Arc'teryx has found a way to lighten up a jacket and streamline the features to keep it simple. Mostly, however, they have seriously dialed in the articulation patterns of hardshell jackets, so even this stiffer material climbs as naturally as you do. Arc'teryx utilizes this similar design strategy to make the other impressive jackets in this review.
Venting and Breathability
Arc'teryx has kept busy, updating their gear in ways we could not have fathomed just a few years ago. They continue to set the bar quite high and lead the charge in technical climbing apparel. With this jacket, we were impressed by the breathability to weatherproof ratio. Serious storm protection demands a thicker material, which often makes a jacket feel warmer, but they've lightened this severe-weather jacket enough that we still enjoyed wearing it on cold ski tours and especially on cold, long ice climbs.
Additionally, the jacket has pit zips that allow you to dump heat in a hurry, so if you pick up the pace, you don't have to worry about sweating out your inner layers. Breathability is an important consideration for this jacket, but it is designed for severely cold climates.
Weight
This is a mid-weight jacket. For the amount of storm protection you get out of it, this is a truly mind-boggling feat. This jacket is quite lightweight for what it offers.
Features and Design
Simple, streamlined, clean—everything we have come to expect from Arc'teryx. The Alpha SV has Napoleon pockets high above your harness, which are a pair of chest pockets. These unzip from closer to your center line, and the pocket falls away toward your sides. This style of pocket is excellent for keeping navigation tools and snacks readily accessible. There is also an internal zippered chest pocket. This jacket also has some thoughtful details that help with ease of use: the adjustable hem has oversized buttons that allow you to adjust the waist tightness easily with gloves; the same story for two of the four adjustment points on the hood. Lightweight velcro cinches the cuffs, and the sleeves are just a little bit bigger to ensure ease of climbing when wearing more insulating layers underneath. The longer torso length provides a good fit under your harness and extra storm protection. We also liked the shoulder zipper pocket, which is great for those who ski or ride at stormy places with RFID lift tickets.
Should You Buy the Arc'teryx Alpha SV?
If you need an especially burly hardshell for extended alpine missions, this is one of the best and burliest. However, you'll pay for it; it's a serious financial investment, but if you take good care of it, we think it'll last for an impressively long time, through a whole lot of grand adventures.
What Other Hardshell Jackets Should You Consider?
For a complete feature set and one of our favorite all-around jackets we tested, check out the Arc'teryx Beta AR. Another favorite is the Patagonia Triolet, a more affordable model great for snow sports.