Arc'teryx  Gamma MX Jacket - Men's

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Made for the dynamic demands of alpine travel, this Arc'teryx jacket is built to handle everything from ice climbs to fall hikes. A regular fit allows room for light layers.

Color: Solitude
Size: XXL
Quantity
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Features

  • Fortius™ 2.0 fabric provides midweight insulation, resists wind, repels water, breathes and delivers exceptional durability
  • Hardwearing Fortius 2.0 soft-shell fabric has an increased warmth-to-weight ratio
  • Taped seams for weather resistance, a low-profile finish and added strength
  • Updated with a PFAS-free FC0 durable water repellent (DWR) treatment and a roomier regular fit for expanded layering options
  • Articulated patterning and stretch combine for unrestricted mobility and freedom of movement
  • Shaped cuffs with low-profile elasticized cuffs at wrists
  • Chest pocket with zipper
  • 2 hand pockets with zippers
  • Adjustable hem drawcord seals out drafts

Imported.

View the Arc'teryx Gamma Product LineView all Arc'teryx Men's Soft-Shell Jackets

Technical Specs

Best Use

Climbing

Hiking

Fabric

60-denier synthetic stretch soft shell nylon; plain weave face polyester fleece backer, 233 g/m², FC0 durable water repellent (DWR)

Hood

No

Back Length

Hip-length

Back Length (in.)

Unavailable

Gender

Men's

Weight

1 lb. 2 oz.

Sustainability

Contains materials that meet the bluesign® criteria

Fair Trade Certified™ Factory

Reviews

13 reviews with an average rating of 3.2 out of 5 stars

43% 3 of 7 reviewers recommended

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MKDSE
Location:NY
Rated 5.0 out of 5 stars
1 year ago

Ever so Slightly larger than previous iteration

At 6’ 205lbs the Large fits perfectly. The previous iteration was too narrow in the shoulders and looked a little off on me. But of course the XL was too big for me. It seems that I’m one of the few people who think the new revisions fit better. I am by no means overweight. I’m muscular and athletic. I’m constantly biking, hiking, and climbing. This jacket is perfect for those things as well as a day to day jacket. I still wish it had the old cuffs from 2017. These glued cuffs with the bunched up elastic aren’t the most comfortable but at least they made them a little wider this time. The 2020 version used to get stuck on my wrists all the time. Overall a good revision.

sjs55
Rated 2.0 out of 5 stars
1 year ago

Definite downgrade

Compared to the previous version this is definitely a step down in materials and fit. Fleece lining is now thinner and overall the material feels much cheaper. The jacket now lacks that premium comfortable feel I loved about my prior Gamma MX. Although Arcteryx claim the fit in the medium is unchanged, after trying on my old version and this one, the revised version is not as fitted through the body, unfortunately. Overall, I'm quite disappointed, as I've owned 5 of the hooded and non-hooded MX jackets over time. All this on top of the fact that it costs 30% more than the previous one. It looks like I'm going to have to start searching for an alternative soft-shell for daily use.

Response from arcteryx.com
Customer Service
1 year ago

Hello there, thank you for your detailed feedback on the revised Gamma MX jacket. We're sorry to hear that the materials and fit didn't meet your expectations, especially after your positive experiences with previous versions. We understand how frustrating it can be when a trusted product evolves, and we’ll share your insights with our design team.

AngryCust
Rated 2.0 out of 5 stars
7 months ago

Nicely Made, But Bad Sizing!

Jacket is really well made, very warm for a fall hike, mid layer in winter ! EXCEPT Arc’teryx sizing is way out to lunch! A Large fits like an X-Large and the Medium fits like a Small! (I’m 5’9” 153LBs) THERE IS NO MEDIUM FIT Jacket. Every other brand out there , Patagonia, Northface, Marmot- Med is just that, Large is just that. Not Arc’teryx!! Swimming in a large and the medium designed for a very small guy!

Response from arcteryx.com
Customer Service
7 months ago

Hello there, thank you for your feedback. We’re glad to hear you’re enjoying the performance and warmth of the Gamma MX Jacket. We understand your disappointment with sizing and truly appreciate you sharing your experience. Our fit profiles are designed with specific activity and layering intentions in mind, which can sometimes differ from other brands. That said, we’re always working to improve clarity and consistency across our sizing, and your input helps us do just that. If you ever need personalized sizing guidance, our team is here to help ensure you find the best fit for your needs.

Robert
Rated 4.0 out of 5 stars
1 year ago

Well-designed jacket

I love the sleeves are not too long and the cuffs are perfectly designed / contoured so as to not extend over the palm of your hand. The jacket is light but provides decent warmth, which is perfect for autumn / winter in Paris. The fit through the body is roomy and also not too long, which is also good for layering and daily usage.

MethodAir
Rated 1.0 out of 5 stars
5 months ago

Too Tight, weird sizing.

The Gamma MX in Medium fits much tighter than expected. I typically wear a Medium in Arc’teryx jackets like the standard Gamma, but this MX version feels restrictive — especially under the arms — making it difficult to layer comfortably. Unfortunately, it’s too tight for practical use and I wouldn’t recommend it.

Response from arcteryx.com
Customer Service
5 months ago

Hello there, thank you for taking the time to share your thoughts on the Gamma MX. We’re sorry to hear the fit didn’t work out as expected, especially since you typically wear a Medium in other Arc’teryx jackets, like the standard Gamma. The MX version is built with a more technical fit, which can feel snug in areas like the underarms and may limit layering comfort. We understand how disappointing that can be, and we truly appreciate your feedback, it helps inform future design considerations.

NSims
Location:Terrace BC
Rated 5.0 out of 5 stars
5 months ago

Forestor's Pov

Wearing my Atom hoody in the woods strictly as a mid layer, I was always hesitant wearing it without a shell. My Atom SL pilled really hard in the first week. Upon buying the Gamma MX from Unbound Gear and Apparel, I feel confident wearing it to work. Hiking through brush and young second growth.

JoeP
Location:St George, UT
Rated 5.0 out of 5 stars
1 year ago

I love this jacket

I love this jacket. Lightweight but warm. A great fit for a tall guy (6'3" - XL). Color (solitude) is very cool. A number of people have remarked positively upon seeing it. I bought it to wear daily, but also to stick in the bottom of a back pack when hiking in the shoulder seasons or at altitude

Backcountry wanderer
Rated 3.0 out of 5 stars
1 year ago

Needs pit zips!!!

This jacket used to be awesome! I had one for years - great protection from wind and cold when climbing on my tele's and then threw a hard-shell over it for the downhills. I finally need to replace it but the new model no longer has pit-zips which are a must-have for the climbing :-(

Response from arcteryx.com
Arc'teryx Guest Services
1 year ago

Hi there. Thanks for sharing your feedback on the Gamma MX Jacket. We are happy to hear how satisfied you have been with your previous one. We do, however, understand how the new version not featuring pit zippers can make a difference. We will make sure to pass your comments to our team.

Frank
Location:New York
Rated 2.0 out of 5 stars
1 month ago

Good looking jacket but lack flexibility

Really good looking jacket and warm. However, not the most comfortable jacket - have been wearing this for a few months now and find that the collar is always in the way and the structure of the jacket is a bit rigid and not flexible. Thinking of reselling and go for another style

Response from arcteryx.com
Arc'teryx Guest Services
1 month ago

Hello Frank, thank you for taking the time to share your experience with the Gamma MX Jacket. We’re glad to hear you’re enjoying the warmth and overall look, and we’re sorry to hear the collar and structure haven’t felt as comfortable as you hoped over the past few months. The Gamma MX is designed with a more protective, structured build for weather resistance, but we understand how that can feel rigid depending on personal preference and use. Your feedback on collar comfort and flexibility is important to us, and we’ll be sharing it with our team as we continue refining the line.

Kari
Location:Finland
Rated 2.0 out of 5 stars
1 year ago

EXPENCIVE TRACK TOP

Compared to the previous version this is definitely a step down in materials. Very soft and comfortable inside, but not feel like shell jacket. Pockets fine. Slimmer than Gamma MX hoody. As very many other customers I'm worrying about the materials all over with Arcteryx.

Response from arcteryx.com
Customer Service
1 year ago

Hello Kari, thank you for sharing your thoughts on the Gamma MX Jacket. We appreciate your feedback on the materials and fit. While this version maintains the balance of warmth, stretch, and breathability the Gamma series is known for, we understand that changes in design can feel different from previous iterations. Your input is valuable, and we’ll be sure to pass it along to our team.

1 - 10 of 13 Reviews

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