Arc'teryx Gamma MX Hoody - Men's


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Backcountry skiers and alpine climbers will appreciate the breathability and stretch of the Arcteryx Men's Gamma MX Hoody. This soft shell jacket is designed with high output aerobic pursuits in mind. The tough outer shell is soft and supple for unrestricted movement and a natural feel. This hooded jacket sheds wind and moisture in all but the wettest situations, but most importantly, it lets your upper body breathe while you push higher in the mountains. The versatility of the Gamma MX soft shell jacket is hard to overstate. It is the ideal partner for any cool weather aerobic activity. The athletic fit, anatomical shaping and functional features are classic Arcteryx. The lightly insulated Arcteryx Men's Gamma MX Hoody is the adventure partner you have always wanted.


  • Material: Fortius 2.0™; nylon/spandex blend
  • Moisture-resistant outer face fabric
  • Snow-shedding
  • Breathable
  • Lightly insulated
  • Durable
  • Wind resistant
  • DWR finish (Durable Water Repellent) helps bead water from fabric surface
  • Anatomical shaping for fit and comfort
  • Articulated elbows
  • No-lift gusseted underarms
  • Helmet compatible hood
  • Soft brushed-lined collar
  • Laminated sleeve pocket with laminated zip
  • Two hand pockets with zippers
  • Two chest pockets with hidden zippers
  • Stretch-woven cuffs
  • Drop back hem
  • Laminated hem
  • Adjustable hem drawcord
  • Fit: Athletic fit, hip length
  • Recommended for: Alpine climbing, backcountry ski, nordic ski
  • Weight: 686 g, 1lb 8.2 oz

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Review Summary

4.9 out of 5

60 Reviews

  • Build quality: 7
  • Great design: 7
  • Performance: 7
  • Lasts forever: 5

  • Cost: 9
  • hood a bit large for non-helmet use: 1
  • location of manufacture: 1
Comfort: 5 / 5
Quality: 4.9 / 5
Durability: 4.6 / 5
Wind Protection: 4 / 5
Water Protection: 3 / 5
Wind Protection: 3 / 5
Fit: 2.8 / 5

60 Ratings & Reviews

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
FitClothes: 3 / 5
WaterProtection: 4 / 5
WindProtection: 4 / 5
from Denver, CO
35-44 yrs

Best Jacket Ever
January 05, 2013

I am on my second jacket (after 100s of ski days). I will never buy another brand as this jacket fits perfectly and works in all conditions. Can't go wrong with the Arc'Gamma Hoody!

Pros: Great design, Build quality, Lasts forever, Performance, Great value, Cons: Cost
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
FitClothes: 2 / 5
WaterProtection: 2 / 5
WindProtection: 1 / 5

my favorite softshell jacket
July 10, 2011

The fabric is soft, looks good on you, breathes well, what to not like this jacket? Well, price is high, but it is worth every penny. Fairly slim fit, it does make you look a bit better. Great for all kinds of outdoor activities in cool/cold weather. Bottom line, get it. ps: what's up with all the new colors? bring back the abyss blue.

Pros: Great design, Build quality, Lasts forever, Performance, Cons: Cost

absolutely great jacket
September 23, 2010

The Arc'teryx products never disappoint me, it is so stylish in appearance, Although it costs much money, I think it is worth with its price, it has a high quality and can provide anything I want, windproof, water repellant and breathable features. Especially I like its blue zip in the chest pocket.


from Colchester, CT

Gamma MX
November 11, 2010

Excellent light weight jacket or a mid layer. I am 5'10, 200 lbs. Ordered a large and it fit a little snug in the arms. Length was fine.

Great jacket
November 13, 2005

the best softshell on the market. i got this as a christmas present so i cant really comment on the value, but i will say that this is an awesome jacket. i use this jacket primarily for skiing, and the jacket works much better than any of the other gore tex crap i have ever owned. the strech fit rocks on the slopes. buy it for your son for christmas!

Good!! worth over USD300
March 07, 2005

I have several pieces of softshells but this one is the most versatile and comfort one. You know Powershield is really stretch fabric than Wiindstopper so you can have better mobility while activity. But I don't believe it is warmer than Windstopper actually. Regarding hood it is big enough for wearing over helmet but it looks a little bit fun during off due to huge size. Anyway you may go into MX hood rather than MX Jacket if you are looking for a stuff which can reduce your pack size in variable weather condition. It works!!!

One of Arc'teryx's best pieces
March 09, 2004

The Arc'teryx Gamma MX Hoody (where DO they get those names?) is another immaculately thought out and executed softshell from a company known for leading edge products. I own two other softshells by Arc"teryx, including an "easy rider" jacket, as well as softshells by other companies. This piece fits very close to the body, it is not boxy at all, but has lots of give in all the right places, so it does not ever feel confining. It is very lightweight, so can be worn in spring weather, but also is completely windproof, so provides a considerable level of protection. While Arc'teryx doesn't promote the jacket as waterproof, in my experience, which is somewhat limited to date, it is. The hood is an excellent addition, and because it is much softer than a typical "hard shell" hood, is so much more comfortable than even the well thought out hood on an Arc'teryx hardshell. Because my coat is black, I can wear it every day, both for dressy, casual, and athletic pursuits. In fact, I have to think of a reason NOT to wear this coat. And, if the weather is really bad, I can always wear it UNDER my hardshell, also from Arc'teryx. In short, this is a great product from a great company when it comes to softshells.

March 11, 2004

This is an amazing jacket! Power shield material is strong and lightweight. Arcteryx calls this jacket water resistant, seems to me it is waterproof. I wore it in a torrent for 15-20 minutes and was bone dry. Go ahead and spend the extra money to get the hooded version. This garment is not much on pure warmth, you will need an insulating layer underneath, but it gives good wind stopping ability, has plenty of pockets, and looks great!

Exceptional, feature-rich, multi-use jacket.
August 28, 2005

This is my first Arc'teryx item and I'm already addicted. Their attention to detail and quality is outstanding. I purchased this item as an all-wear jacket (from everyday use to international travel to extended backpacking). I wanted something that would be warm, breathable, wind/water-resistant, could double as mid and outer layer, and last as long as I will. I got that and more. I tested it from 40+ to 70+ degree weather and have been consistently comfortable. The hand pockets have an inner mesh lining that can aid breathability during highly aerobic activities, or in warmer weather. The hood is considerably larger than my head as it can accomodate helmets, but adjusts effectively to snugly fit around my head. The pockets are generously sized. Things I would change/add for my purposes: seam tape in rain exposed areas (particularly the shoulder seams where a decent rain can eventually seep through), exchange the sleeve pocket for an inner security pocket, slightly longer cut, and a slightly less trim fit for better underlayering in cooler climates. I wear this jacket every chance I get, definitely worth the price I paid.

from Mid West

Soft Like A Baby's Butt
February 23, 2011

We use the Gamma MX Hoody on warmer days throughout the winter for cross country skiing, and snow shoeing. Used a lot for all season hiking, biking, and rowing. This multiple use hoody earns its worth in spite of the extra cost. This hoody is not a radiator but will help to retain body heat if you keep moving through the elements. If you stop for very long you might consider layering up with something over and/or under. This hoody really packs small. The Gamma MX Hoody will help keep you outside even if the wind and rain are threatening. If the elements are to extreme consider wearing something else with it. Arc Teryx picked a winner with the soft/stretchy fabric. I wear mine around the house during the winter rather than turning up the thermostat. The big hood requires some adjustment depending on what you are using it for. I like wearing the hood off my head and flat on my back in good weather or closed up around my face to keep the nasty weather out. Fashion statement from a friend: "That is one sweet hoody!"


July 01, 2006


athletic fit. great fabric and weatherproof
December 27, 2008

Trim athletic fit. Little tight under the arms wearing a mid-weight, long sleeve top and a fleece jacket. Nice length in back; slightly longer in back than front. Like all Arc'teryx, really long sleeves to fit my long arms. Great fabric and waterproof. Shoveled a 10 inch snow fall from driveway and was comfortable in the 15-20 degree F temps with 10 mph wind.

Gamma MX Hoody = the best of the best.
January 14, 2006

This jacket is the best i ever bought in my life for climbing and hiking and snowshoeing. It is very breathable and fairly windproof, and also protect very well against a light rain or snow. I tested during a snowshoeing trip and had very good result with it in a multi-layer system. I just used to wear an Arc'teryx Rho LTW Zip Top shirt as a base layer and a polartec 100 under it when it is cold . Always perfect never too hot or too cold. Very good overall qualities

This jacket is a great investment.
March 11, 2005

This jacket represents one of the finest soft shell out there. The Mountain Hardwear Synchro and Alchemy are pale in comparision to this jacket. Altrec's customer service was very helpful and knowledgable. The delivery was right on-time. Get this jacket!!!! It worths every penny.

Best Jacket I've Ever Owned
November 03, 2009

Pros: Looks GREAT, fits me perfect in medium (5'10" 158lbs athletic ectomortph body), VERY obvious high quality build, was an absolute steal for $230, very comfortable, very versatile, in general just a very well made jacket. Highly reccomended. Cons: Only very minor, the hood is quite large (intended for use with helmets) so it does look a bit big when worn regularly. Also the jacket opens quite wide when not zipped up (in part due to the large hoody). If you wear your jacket unzipped often, the non-hoody version might be better for you.

WindProtection: 4 / 5
from British Columbia
45-54 yrs

Gamma MX Hoody
November 29, 2011

I bought this piece for backcountry skiing and alpine climbing. The goal was to have a piece that cut the wind and still breathed well enough to allow for comfortable uphill travel. This hoody makes the grade. It is always a compromise when trying to balance these two competing goals, but the Gamma MX does it as well as anything I have ever used. It certainly makes more sense to wear this kind of garment when working hard on the uphill than to wear gore-tex or similiar fabric. The attention to detail, styling, and quality of construction is typical Arcteryx (flawless) so I'm pretty happy.

Pros: Great design, Build quality, Performance, Cons: Cost

November 30, 2006

Great for skiing, mountaineering, around town use. I bought it to replace a Patagonia Scythe jacket - this feels better designed by leaps and bounds. Arc'Teryx seems to have a slimmer fit, which I prefer.

Terrific Piece of Gear
January 09, 2006

I was looking for a soft-shell with a hood for winter mountaineering: both for when you are starting out on a cold day and need to get warmed up, or when you get to the summit and need slip on something warm (wind, summit temps) and breathable (because you'be sweating on the way up) that gives you some head protection. I bought this over the holidays, and just used the piece this weekend in the Adirondacks, and it was perfect. We had single digit (F) temps at the base, and it helped me warm up at the start without overheating (before being put in the pack); then donned again on at the summit, where the temps were compounded by 25 mph winds, and this jacket kept me feeling perfectly comfortable for the brief period I was up top. Pricey, but I would have to say it was really worth it.

Worth its weight in Gold
April 07, 2005

Let me first start by saying Altrec is the best. Great prices, super fast/cheap shipping. After trying TNF, Mountain Hardware and all the other top outdoor brands, it is easy to say that Arc'teryx makes the most functional and superior outdoor garments. Living in Colorado, I have ample oppty to test this jacket in a variety of conditions. From the slopes, to verticval ice walls, to extended backpacking trips at high altitude, this jackets performs flawlessly. The fit is athletic, and as with all other Arc'teryx garments there is no excess material or bagginess in unwated area to clutter up your movement. And the soft polartec lining makes it a joy to wear. The fabric sheds water beutifully, and the hood is large to accomodate your helmet. Another winner from Arc'teryx. You dont need that new couch, buy a couple of these instead, you wont be sorry.

Fits like a dream!
February 09, 2005

I bought this soft shell after trying Patagonia and Hardwear- It is a snug fit but it moves so well with your body and regulates heat very effeciently- I use it in Vermont and it can be worn alone (without heavy exercise) to about 35 F- after that you need a shell over it- the material is excellent and doesnt snag easily- Great craftmanship and smooth lines make it visually the best soft shell around in my mind- Buying at Altrec I got free shipping and I see that it is elsewhere, rei etc for 328- i paid 245- a deal in my mind!

Amazingly versatile jacket.
July 05, 2007

This jacket does it all, it's stretchy and breathable yet water resistant and wind proof and it adds a bit of warmth. As with all Arc'teryx hoods the adjustability is unmatched. You will end up wearing this jacket everywhere it's that versatile. Besides being a very technical piece it's good looking too, I get complements all the time on mine. They do run snug so if you're planning to fit an insulating layer underneath for winter activities size up.

Best softshell jacket
July 11, 2005

This is a very versatile piece of garments. The Polartec fabric sheds water nicely and is blocks wind, yet is highly breathable. The hood is very convenient in windy and rainy weather. Perfect fit which allows great mobility. The jacket is beautifully made. The build quality is way above other brands such as Patagonia and TNF.

If you need a hood, its the way to go
February 21, 2005

This jacket rocks. I get pro deals from Pattagucci and cloudveil. I have to say I would pay full ticket for this jacket. The cut is form perfect. The jacket does not breathe as well as my Serendipity jacket but it is not designed too. The cut is much better than the Ice Flow and Arcteryx does not cut corners were Cloudveil is starting to. It is nice to see a company not lower their standard just to make a few extra bucks. I wish Cloudveil would follow that but I think they are losing sight of their soul focus. The only thing I do not like about the Gamma is I think the zipper should be reversed on the laminated sleeve pocket. The zip always seems to open just a little and the snow, ice or water always seems to get in. Over-all, the jacket performs very well. Breathes great and dries quick. The hood is also a great fit.

sweet jacket
January 31, 2004

simply the best jacket in my closet. well designed. i kept warm with only a mid layer underneath in temps near freezing this winter. the hood is well worth the extra $.

Best jacket I've ever own
March 06, 2005

After some days hiking on day trips in the Alps this jacket is better than all jackets I've ever own before (including Gamma MX jacket without hoody).Best quality in class and bought for a very good price. Go for it. There is no better.


from Virginia - Blue Ridge

My Favorite Cool Weather Softshell
November 27, 2010

This is simply the best softshell I've ever found - and I've at least tried to sample them all! I have more than a little bit of a jacket fixation, and my closet is full of fancy softshells, driclimes, hardshells, and combo-shells. But it's almost always the Gamma MX I pull out when I'm actually going somewhere. Even within the stellar Arcteryx line (like the almost-as-nice but stiffer Epsilon line, which has fewer pockets), the Gamma MX is a cut above the rest. The fit is a little more athletic, the pockets are better placed, better sized, and more useful, the weather resistance is ideal, and - this is more important than I ever thought it would be - it's the softest and least "crunchy" of anything else out there. The "hand" of the fabric doesn't sound like a big deal, but when you're planning (as I do) to spend this much money ONLY on a jacket that can do everything - from football games to mall trips to hardcore multi-night backpacking or ski touring - the comfort and quietness factors are actually pretty major (at least for me). The Gamma MX actually feels almost like a thick t-shirt: pliable, soft, slightly fuzzy on the inside, and completely silent. Add killer water resistance, wind resistance, breathability and pretty decent looks for a technical shell, and you've got a total winner. I have both the jacket version and the hoody version, and love both. My only suggestions for improvement would be to add a second sleeve or wrist zipper for quick-grab items and/or altimeter, and also a super-lightweight (mesh?) inside pocket. Other than that, it's hard to imagine improving on this one - but I'm sure Arcteryx will come up with something! P.S. Every once in a while they go on sale, and Altrec usually has the best deals.

Awesome soft shell
November 01, 2004

This is my favorite soft shell! I've tried the North Face Vector 2 (too heavy), Mtn. Hardwear Windstopper Tech fleece (holds too much sweat in), Mtn. Hardwear N2S W/S (comfy but no hood and partial zipper). The Gamma MX is lightweight, takes abuse well, dries quickly and I love the hood. I can pull the hood up and down as needed in windy conditions although it is a tight fit over a climbing helmet. I also have the matching pants and they took crampon scrapes without a whimper.

Thinking of buying a second one
November 26, 2004

I've been wearing this everyday since buying it. It's warm enough to wear with just a t-shirt underneath during this time of year. Waterproofness is great - been in two rainy days already without getting wet. The hood is a definite plus - worth the extra 50 dollars. The jacket is nicely fitted so it looks great on you. And the material really strethes so you can wear a lot of layers underneath if you want to. Worth every penny!

Great jacket!
March 19, 2007

I like the snug, tailored fit and style. It's just as at home in urban settings as in technical settings. The hood fits over a helmet, and when fully zipped, it snugs under your chin if you happened to forget a neck warmer. Nicely constructed, great seams and zippers.

Great Jacket
November 06, 2006

This jacket is everything as advertised. You can tell the quality of the jacket without even putting it on. Once on, it will not disappoint.

da best
December 09, 2005

Being Canadian and having lived in Vancouver where Arcteryx is made I like to support the local Canadian businesses. I have several garments made by this company and have worn many others in the past like North Face, Mountain Hardware etc. Arcteryx sets the standard bar none and every other outdoor wear company in the world attempts to keep up to Arcteryx. I will never wear anything else so long as I live. They are the best!!! But I digress, this jacket kicks serious ass. I use it for everything from skiing, climbing, hiking and casual use. The fit and finish is the best you won't be sorry. Pay the extra, you'll get the quality.

from San Francisco, CA

November 12, 2010

This is my second Gamma MX jacket of the year, the first being a non-hoody. I refer to this jacket as being the best soft-shell I have purchased. I have many renowned brands of soft-shells and they all perform great. This Gamma MX hoody in particular, I wear most due to it's fit, comfort, and performance. I mtb, hike trials, and plan to board during hot days in this jacket. If you are looking for a "perfect" soft-shell, this is the one!

Comfort: 4 / 5
Durability: 5 / 5
FitClothes: 3 / 5
WaterProtection: 4 / 5
WindProtection: 4 / 5
from San Jose, CA
35-44 yrs

Incredible Jacket!
February 25, 2013

I got my Jacket a couple weeks ago and already had a chance to put it through the paces. I took a trip to Europe last week and used it for morning runs in Paris while there on vacation. The weather was below freezing, and the jacket did well to keep me warm enough once the blood got pumping on the run. It's pretty snug so there isn't a lot of gusts blowing through the jacket. I would imagine though that on a windy day, this isn't the best jacket for the job. While standing outside with some friends waiting for the Metro on an outdoor platform, I did get a chill creaping up my spine. But for slightly warmer conditions or when you're moving this gives great proection and breathability. The hood is certaily fitted to accomodate a helmet and fits somewhat loose without one, but I was wearing a cap that seemed to take up a bit of the slack. I did also manage to get stuck out side in some light rain without my gortex shell and it did a great job of shedding off the rain. The jacket also has a great assortment of pockets that are well planned out and quite useful. It's a little pricey, but I bought it on sale. Still this is Arcteryx and you get what you pay for. No dissappointment here. Kuddos to Arcteryx for knocking the cover off of the ball again. Can't wait to get this jacket out to some more adventures.

Pros: Great design, Build quality, Performance, Ease of use

December 28, 2005

the Arc'teryx Gamma MX Hoody is the proven and popular fleece middle layer for technical climbing, hiking and backpacking.

My New
May 24, 2010

This is another wonderful piece from the folks at Arc'teryx. I bought this intending to use it as mid-weight outerwear and ended up putting it on nearly every day through the winter. Warmth was enough for the vast majority of days where i live (Central IL). The material is wonderful in that it is sufficiently warm and water resistant while remaining very lightweight and low bulk. The fit is trim and athletic as all Arc'teryx pieces seem to be. I am 5'9" and 180lbs and the Medium does just fine. Hood is massive (good for helmets) and the hem in back is nicely shaped and longer for added protection when bending and moving. My only issue is that the sleeves are a little long. I assume designers do this to assure full freedom of movement but i could have gotten full movement with 2 inches less arm (maybe my arms are short?). Overall, fantastic jacket that i would definitely buy again.

Comfort: 4 / 5
Durability: 4 / 5
Quality: 4 / 5
FitClothes: 3 / 5
WaterProtection: 2 / 5
WindProtection: 2 / 5

Great Jacket
January 06, 2013

Positives: The material of this coat is very stretchy - like thick spandex - and thankfully offers almost no resistance to one's motion. The wind protection is good, and offers a great balance with breathability for aerobic activity - running in my case. Negatives: the stitching in the (rather tight) cuffs snapped a bit when I first put it on. Also, the hood is quite huge, which makes the coat less comfortable when not wearing a helmet.

Pros: Great design, Cons: Cost, hood a bit large for non-helmet use

Pricey but worth it
August 30, 2004

Light, with that great Arcteryx attention to detail. Super hood design thats simple to operate via chest pockets. For heavens sake Arcteryx put your name on your products, not insanely like NF but in a tasteful manner. I buy only North American made goods any more. Why? Do you think Asian manufacturers are following ANY environmental guidelines in their manufacturing....Use your head and keep your fellow gearheads employed. Great,handsome jacket that you will take every where. Not waterproof, like every other softshell it will eventually leak at the seams in a down pour. So much more comfortable than the Schoeller materials.

Great Buy
January 17, 2008

Awesome Jacket , great quality , great looks. I was expecting something a little thicker. The hoody is big enough to use with a climbing helmet. Great overall jacket


Best jacket I have ever owned
October 10, 2007

This jacket is awesome. Warm, breathable, good water resistence, cut is really nice. Loads of pockets too. Easy to wear as a middle layer on really cold treks, but outstanding as an outer layer around town.

Very good Soft Shell
March 23, 2004

This is a very good softshell. Water and wind resitant. It keeps warm and doesn't weigh a lot. One of the best jackets from Arc'teryx.

I'm impressed!
December 12, 2009

I would call this a layering piece that doubles as an outerwear jacket. The hood has 3 adjustment areas, each side of the front neck and the back of the head. In many ways it cinches up more completely than, say, the Theta SV jacket. It is also easy to get a tight fit around the neck when the hood isn't on the head, again, easier than the Theta SV. The hem closes tightly around the butt if desired so internal heat can be trapped near the body when used as outerwear. There is insulation but not heavy so this makes it excellent for layering. Not as stretchy as the Gammma MX pants, nor, as thick. I've got black in both, but, for some reason the pocket color doesn't match up between the two, however, I recently bought black rho AR tights and this is a perfect color match with the black Gamma MX jacket. Pockets galore on the arm, two hand pockets and two chest, stow pockets. A velcro cinch at the wrists would have been nice, but, all told a very nice all around jacket!

Arc'teryx Gamma Mx is a good buy
December 04, 2009

Great jacket and fits well.

Very nice light weight jacket
February 07, 2007

Love the style, comfort, and fit of this jacket.

from Marin County, CA

Great BC skiing jacket for Sierras
December 14, 2010

I got the 2009 version of this jacket as an outer layer for travelling while BC skiing in the Sierras. So far so good - works great as an outer layer for travelling with a Capilene 1 t-shirt and a Capilene 4 shirt underneath. I can also comfortably wear a Marmot windshirt underneath too, which I've found to be a really versatile layering system for travelling. Then all you need is a hooded synthetic parka for breaks and hanging out. The pockets and hood are great too - stretchy and roomy; the hood especially so - plenty of room for a thick beanie or helmet whilst maintaining plenty neck motion and visibility. It's not as water resistant as I would have liked, but certainly as expected. The reality is that when it's not too cold and it's snowing, I take the GoreTex anyway. My only minor complaint so far is that the stitching around the back of the neck isn't as stretchy as it should be, and so the outer thread snapped in a few places as I was putting it on in a hurry. That said, the seam is still solid, so no bother.

Awesome Jacket!!
November 24, 2009

Using as a softshell under a Defense issued goretex jacket in Afghanistan, keeps me nice and toasty, breathable and dry to boot, cant wait to don it hiking on the Appalachian trail when I return next year. The hood is sleek and stylish when down and not in use. A little pricey, but well worth the cost if your in the market, highly recommend.


September 25, 2006

You get what you pay for with this jacket. Though I haven't put it through any extreme tests yet, I can say that the quality, workmanship, fit, feel & styling are all superb. As was mentioned, it takes layering easily without excess fabric. Also feels good next-to-skin. A strong wind barely permeates the membrane & helps to eliminate clamminess.

awesome coat
February 13, 2006

this Jacket fits great and allows your body to breathe. I have worn it to hike ridgelines for soem backcountry skiing, and it doesnt overheat you while hiking, but still keeps you warm while skiing. Arc Teryx just does a great job making quality products

Excellent Jacket
March 19, 2010

Great Arc'teryx jacket, I bought the Gamma MX a few years ago and still holds up great. I bought the Women Gamma MX Hoody for my girlfriend and she loves it and at the same time I bought the Men's version for myself. Great jacket overall but be careful it is designed to fit an athletic build.

very nice!!!
December 17, 2009

Got this in x-large but, due to the stretch, I should have gone large. You see , I'm 6'6" and I can, either, get more sleeve length or better core body fit, but not both. I would prefer more traditional hemchords for cinching the jacket bottom. but these work well enough, and it is nice to have a polartec hoody that has a hood that is totally adjustable, most brands cut corners here, or they used to. ( i haven't bought tech wear for 6 years and my main experience is with North Face). The chest pockets are very roomy. It would be nice to have sleeve cuff adjustability since this will be an outer jacket much of the time. All in all, it's a winner

January 24, 2006

used to have a a gamma mx regular jacket, and that was greatt, but after upgrading to this jacket, its just awesome, great warmth for hiking backcountry and keeps you warmer than you think once your skiing. expensive but worth it.


from Japan

Best soft shell jacket !!
March 03, 2011

This jacket is the most comfortable in a soft shell category. This jacket is Durable, highly breathable and Wind resistant. It is clothes with the best functionality.

Comfort: 5 / 5
Durability: 4 / 5
Quality: 4 / 5
FitClothes: 2 / 5
WaterProtection: 2 / 5
WindProtection: 2 / 5

from Poconos, PA
25-34 yrs

I just bought my third Gamma MX!!
December 07, 2011

I just bought my Third Gamma MX. I already have the Jacket (old style) that I love and I sold my old style Gamma MX Hoody last year. It turns out I should not have sold it, because I have been missing it ever since so I decided to order it again. The one major thing that Arc'teryx has going for them is the fit of there clothing is second to none. It is nice and slim and is flattering to the wearer. The jacket blocks a little wind, but it is in no way windproof. It is also is a little resistant to precipitation but it is definitely not waterproof. That is why there are hardshells, however it breathes much better than hardshells. The Fabric is very soft and stretchy yet it still remains pretty durable. Overall the jacket is not the warmest, but it is not supposed to be. I recommend an Atom LT underneath for very cold winter weather. This will cover you for just about everything but heavy rain or wet snow. The only thing that I would like is if it was completely waterproof, but i'm sure if Arc'teryx did this it would not be nearly as breathable.

Pros: Great design, Build quality, Ease of use, Performance, the fit and cut of the jacket, Cons: Cost
from Salt Lake City, UT

Excellent piece, pricey and fits small
February 23, 2011

Typical Arc'teryx quality outerwear. Got this in the mail 2 weeks ago. Own an older model Alpha Comp Hoody (hybrid softshell/hardshell from 2003) and Alpha SV (hardshell). The Gamma MX fits much shorter than the SV, and much slimmer than both. I'm 6'2", 200lbs, and have a muscular build. I can typically get away with a medium in Arc'teryx pieces but had to settle on a large with the Gamma MX to allow room for a mid-layer. The drop seat design is nice, as it gives your behind a little extra coverage while still keeping the front out of the way of your belay device. Not a weatherproof piece, but not advertised as such either. Provides an excellent balance of wind/water resistance and high mobility and breathability. I would still recommend a Gore-tex shell for anything more than light precip or moderate winds though. The price is a drawback, but then again it's probably the best softshell on the market for light, fast alpine use. Would recommend at least trying one on if you're in the market.

Great softshell
December 08, 2003

One of the only two (the other being the Eider Shield jacket) softshells to be entirely made of polartec shield windproof/water resistant material as opposed to only panels of the material over an otherwise fleece shell like most performance softshells. Extremely lightweight, great close to body fit with room fir a base layer and a mid layer if needed, breathable and enough pockets. Cons: not completely watertight: it will not withstand an endless downpour allthough it manages standard city showers well enough. No inside pocket and no thumbholes to keep the arms from running up during skiing. Not cheap, although worth the money because, again, entirely made of Polartec shield fabric.

Super Jacket
December 18, 2009

Perfect for northern California winters, wind and rain no problem. I'll be using this for spring skiing too.

everything you need to climb and to Hike Winters
December 30, 2007

this jacket has a slim fit which minimalizes bulk very well- I have used it to winter trail run and also to wear under a shell for snowboarding- it feels like a dream, fits well, sheds water, blocks much wind and looks great- sadly now made in China not BC but qulaity still seems good- for more wind block check the signma ar and also the sigma SV

One Great jacket!!!
December 25, 2005

This is one of the best craftmanship, best quality, and best investment I have made for a Soft shell jacket. It is a bit pricey, but it worths every penny.

Superb Quality
March 15, 2004

Great jacket. Terrific Arc'teryx quality. Perfect fit.Would of liked to see thumb holds though.


great jacket
February 07, 2010

It is one great jacket that Arc'teryx made.Good fit,wonderful polartec material,good looking. I love it.

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
WindProtection: 3 / 5

25-34 yrs

Destined to be a favorite
October 25, 2011

More times than not I find myself needing a hood. It's always my luck to head out on a hike, climb, or quick grocery run and face wind, rain, or snow. The Gamma MX hoody is proving to be a great replacement for both my Gamma AR and Hyllus jackets. This is a lighter weight than I expected but insulation seems good so far. It's easy enough to add a light mid-layer on burlier days. It could easily work as a mid-layer under a shell for warmer sessions. The flexibility should prove itself over time. My only disappointment is the location of manufacture but it is what it is. Stitching is even and panels are aligned, unlike my experience with previous non-Canadian Arc'Teryx gear. In fact, his is in my first non-Canada-made piece out of about a dozen shells, softshells, fleece, and sweaters. Despite this, I still see the Gamma MX becoming my go-to softshell for most occasions. It's a winner and one I can easily recommend.

Pros: Great design, Build quality, Performance, Great value, Cons: location of manufacture

Also Available

Arc'teryx Men's Gamma MX Hoody Photo

Blackbird, Buckeye, Heron, Kyanos and Saguaro Green.

Available sizes, while supplies last, include size small, size medium, size large, size extra large and size extra extra large: s, m, l, xl, xxl.

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