First Look Gear Review

Arc'teryx Alpha SV Review


Hardshell Jacket

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  • Currently 5.0/5
Overall avg rating 5.0 of 5 based on 2 reviews. Most recent review: July 26, 2016
Price:   $679 List | Varies from $475 - $679 online  —  Compare prices at 6 resellers
Pros:  Extremely durable, superior weather protection, great hood, easy to manipulate zippers
Cons:  Heavy, bulky, overkill for many, no handwarmer pockets, expensive
Manufacturer:   Arc'teryx

Overview

While we believe that lighter weight jackets are the ideal choice for the vast majority of outdoor activities, there is still at least one circumstance where something a little more is best - long expeditions to remote places with severe weather. Enter the Arc'teryx Alpha SV, which in our opinion is the best and most durable heavy duty hardshell jacket available today.

The Arc'teryx Alpha SV is tried and true body armor for mountain climbers; it's the most comfortable expedition-style shell we tested. It has a near perfect blend of features: two cross-over chest pockets provide quick access to abundant storage, ergonomic patterning provides a spacious and unrestricted fit, the most comfortable hardshell hood we've ever tested, and quick and easy zippers that allow on-the-go ventilation adjustments.

That said, unless you work outdoors as a climbing guide or are going on a super epic multi-month expedition we feel the Alpha SV is overkill. Instead we would recommend something like the Editors' Choice winner Arc'teryx Alpha FL. The Alpha SV weighs 18.4 ounces for a size large, an amount that is burdensome to carry in a backpack. However, if you want the peace of mind that comes with one of the toughest jackets available, and have the cash to push the performance envelope, it could be worth considering.

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The Alpha FL (red) and the Alpha SV (blue) provided great warmth, wind resistance, and mobility for a day of lift skiing.

Weather Protection


When it comes to weather protection, you can't really get any better than the Arc'teryx Alpha SV unless you just stay indoors. Although we liked the chin guard on the Arc'teryx Beta AR Jacket better, the protection afforded by the Alpha SV is nearly perfect. It features 80D GORE-TEX Pro throughout, the most protective and durable membrane of the Arc'teryx jackets we have tested. The storm hood is exceptional, offering the most customization capabilities, with or without a helmet. It has four draw cord adjustment points - two in the back and two on either side of the neck. If you need to hunker down in a storm, this hardshell will protect you as well as a jacket can.

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This jacket thrives when the conditions get tough. The storm hood easily protects the face.

Weight


This shell weighs in at 18.4 ounces for a size large, which is quite heavy. Weight is a pretty serious consideration and the primary reason why this jacket is not for everyone. But another consideration is compression. While its 80 denier Gore-Tex Pro face fabric is indeed burly and durable, it is bulky, and doesn't compress down well at all. In short, this is not a jacket you want to be carrying around. If you do not need to be living in this thing, you probably don't want it with you.

Mobility & Fit


This model is shaped according to Arc'teryx's "athletic fit," which is their standard cut and means that it has more room inside for layering compared to their "trim" fitting Alpha FL or Arc'teryx Beta LT Jacket. While the fit of this jacket is generally good throughout, it is not terribly mobile. The Gore-Tex Pro membrane is stiff and crinkly, sort of like a paper bag. One nice feature that we like is the added lower back draw-cord, adjustable within either of the chest pockets, which helps snug the back of the jacket in tighter, similar to the Arc'teryx Theta AR. This feature is especially nice if it's a warm day and you're not wearing tons of layers beneath it. Again, mobility is a factor that suffers when manufacturers use the burliest materials available.

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The fit of this jacket is "athletic," meaning there is plenty of room underneath for warmth layers.

Breathability


Unlike the lighter weight Alpha FL jacket, the Arc'teryx Alpha SV includes dual zippered pit zips under each arm. These are very useful in this heavy jacket if you're working hard and building up a sweat. Check out our Buying Advice article for a full explanation of how Gore-Tex Pro actually functions, but suffice to say that you need to build up quite a lot of sweat and heat within the jacket in order for it to begin "breathing" and diffusing water to the outside. Some people find this process uncomfortable, which is why vents are incorporated to add air flow and aid in direct evaporative cooling. For a jacket this heavy, the venting is much appreciated. We liked how easy the zippers on the pit zips (and the front of the jacket) are to manipulate - even with gloves on they are as slippery as butter.

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Pit zips provide good ventilation. The heavy Gore-Tex Pro fabric is very warm when working up a sweat, and the ventilation is certainly welcome.

Durability


Outside its stellar weather protection, durability is the primary reason to get the Arc'teryx Alpha SV. The jacket uses a three-layer Gore-Tex Pro membrane with an 80 denier, top-tier face fabric. Gore's Pro membrane is best for extended trips in severe conditions. It's slightly less breathable than the company's Active membrane, Mountain Hardwear's Dry.Q Elite, eVent, and Polartec NeoShell, but it is extremely durable. Pro Shell is backed by Gore's unconditional lifetime warranty: if you aren't fully satisfied with its durability, water resistance, or breathability you can return it.

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This shell is made completely of 80 denier face fabric, so the entire jacket is as strong as the reinforcements on some other jackets, like the Beta AR. It also has a side-arm pocket.

The face fabric is a critical part of a waterproof breathable garment's performance. When a fabric "wets out," i.e. absorbs water, its breathability is significantly reduced. The Alpha SV uses an N80p-X face fabric, developed in partnership with Gore, that's woven from an 80 denier, false twist textured, high tenacity nylon 6.6 yarn. This fabric is softer and smoother to the touch than older iterations of the piece, but is still not as comfortable or mobile as other products we tested.

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After a couple minutes in the shower, the water is still beading up perfectly. We found the DWR coating on Arc'teryx jackets to be quite durable.

Features


This product is designed for, and performs best for, winter alpine climbing, where you climb ice, snow, and rock, frequently exposing the jacket to abrasion not found in other activities like backpacking and skiing. The shell's most significant climbing-specific feature is the pocket design: two expansive bellowed pockets lie high up on the chest. The pocket zippers hug the jacket's main zipper the right hand crosses over the chest to open the left pocket, and vice versa. This design is frequently employed in climbing shells because it provides access to the pockets without throwing the climber off balance.

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The Alpha SV has two cross-over chest pockets which sit above a hip-belt or harness and are big enough to store almost anything.

For example, imagine that you're high up on a mountain on a steep snow slope. You need to get something out of your left pocket so you put your right ice tool over your shoulder and reach with your right arm across your chest into the left pocket. This is more stable than a traditional handwarmer pocket design where the right pocket's zipper is on the right side of the wearer's right chest because your right arm needs to move up high and right, which moves your center of gravity away from the snow/rock/ice and away from the center of your chest. Although most people who use this shell, including our testers, only spend a small amount of time using the pockets in the environment they're designed for, the pocket design is better for climbing and easier to use in general. Crossing your right hand over your chest and unzipping the left pocket is easier and faster than reaching it high and right, where you heave less leverage to open the zipper. The drawback, of course, is that you don't have any place to hide your hands from the elements.

The Alpha SV comes equipped with Arc'teryx's Storm Hood, a huge, supremely comfortable helmet-compatible hood with four adjustment points. Most hardshells have three hood drawcords but the Storm Hood adds a rear, neck-level adjustment that pulls the hood tight around your neck. We found that this sealed out the elements better than other hoods when we were not wearing a helmet. Its hood is large enough to comfortably wear a helmet (you can look up, down, and to the sides without being pinched or restricted) and its adjustments make it comfortable for use without a helmet.

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The Storm Hood easily fits over a helmet, which we loved, and includes two adjustment points on the front collar, shown here and two in the back. However, the head turns independently inside the hood, making it possible to get an obscured view.

Swinging your arms about above your head and doing gymnastic moves can be frustrating if a jacket isn't long enough, or rides up beneath your harness. Arc'teryx addresses this problem by adding two Harness HemLock foam inserts to the right and left of the bottom hem. These removable 1 cm tubes provide a lightweight and comfortable way to prevent the jacket from riding up beneath a harness or a backpack's waistbelt - a unique feature among the jackets tested. Finally, the zippers, draw cords, and wrist closures are as good as it gets. The zippers are noticeably better than our other award winning hardshells because they're faster and easier to use. For example, the Outdoor Research Axiom generally requires two hands to open the main zip, but the Alpha SV slides open quickly with just one hand. This makes it easier to vent the jacket on the go and to access the interior zippered pockets with a single hand.

Best Applications


This product is best for long expeditions to cold places or working for months at a time outside in wet places. Think prolonged severe weather.

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Hardshell testing the SV in Hyalite Canyon, Montana.

Value


This jacket is really, really expensive, and like we mentioned above, unless you have a specific need, you will be much happier with the myriad of options which cost less. That said, this is a fortress of a jacket will likely withstand years of use and abuse.

Conclusion


The Arc'teryx Alpha SV is our favorite jacket for long mountain expeditions because it is the best heavy duty hardshell, hands down. However, we don't really recommend this jacket for the vast majority of outdoor enthusiasts. Chances are you will already know if this is the type of jacket you need, and if so, then enjoy! It's a high quality piece of engineering. For the rest of you, check out our other favorites like the Alpha FL, Westcomb Shift LT or the Outdoor Research Axiom.

Other Versions


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Arc'teryx Alpha SV - Women's
  • Women's version
  • Cost - $679 (same price as men's version)
  • Earned our Top Pick award

Andy Wellman

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OutdoorGearLab Member Reviews


Most recent review: July 26, 2016
Summary of All Ratings

OutdoorGearLab Editors' Rating:   
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Average Customer Rating:   
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2 Total Ratings
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   Jul 26, 2016 - 06:58am
sele · Mountain Biker · New York
Hi
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Bottom Line: Yes, I would recommend this product to a friend.
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