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  • Arc'teryx - Gamma MX Softshell Pant - Men's - Nautic Grey
  • Arc'teryx - Gamma MX Softshell Pant - Men's - Black

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  • Arc'teryx - Gamma MX Softshell Pant - Men's - Nautic Grey
  • Arc'teryx - Gamma MX Softshell Pant - Men's - Black

Arc'teryx Gamma MX Softshell Pant - Men's


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    7 Reviews


    The classic Arc'teryx softshell for all your mountain assaults.

    Time and time again, experienced climbers and backcountry skiers turn to the award-winning classic backcountry pant, the Arc'teryx Men's Gamma MX Pant. Burly yet comfortable materials, meticulous attention to detail, and practical design based on real-life use make the Gamma MX pant a go-to piece for climbers and skiers everywhere.

    • DWR-coated, abrasion-resistant, stretchy, breathable Fortuis fabric stands up to the rigors of daily backcountry use
    • Midweight, four-way stretch fleece backer adds against-the-skin comfort
    • Low-bulk micro-seams and tiny Gore tape reduce bulk and weight, while high stitch count in the seams guards against blow-outs
    • Gusseted crotch offers added durability and unlimited range of motion
    • Integrated adjustable webbing belt perfects your fit
    • Front hand pockets and thigh pockets keep your valuables safe
    • Hem drawcords cinch the pant legs over your boots to keep out the elements
    • Keprotec patches at the hem prevent damage from ski edges and crampons
    • Item #ARC3416

    Tech Specs

    [pant] Fortius 2.0 (53% polyester, 27% nylon, 20% spandex), [instep patches] Keprotec
    Side Zips
    integrated belt, snap fly
    2 zip hand, 1 thigh zip, 1 thigh hook-and-loop
    Claimed Weight
    19.8 oz
    Recommended Use
    alpine/expedition climbing, backcountry skiing
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Good Pants!

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    Bought a pair of these pants 2 years ago at a local ski shop that was having a summer sale for half-off (score!). These pants have served me well over the past 2 years. I wear these pants when I'm hanging around camp or hiking on a cool summer day or during the winter when I'm ski touring.

    My only complaint is that they're not completely weather resistant, they do get wet and they're not completely wind proof, but that is somewhat expected seeing these aren't a top-layer shell.

    I'm posting this review because over the past 2 years these pants have inevitably worn a bit. But, I liked these pants so much, I decided to order another pair from Backcountry, for full price :(

    I love these pants!

    Best pants I own... most expensive too!

    • Familiarity: I've put it through the wringer

    As ever, this is just my opinion. But for my money (and in this case, a somewhat mind-numbing $300), these are the best alpine pants I've ever worn. These aren't pants to be worn if the temp is above 50 F, but below that in anything but a torrential downpour or a wet snow, the Gamma MX are unbeatable. I've worn them in the high mountains of New Zealand, backpacking a 50 pound load in a light snow. I've used them to patrol my property in winter, temps in the 10-40 degree range. I've worn them skiing. I wore them in driving rain and sleet for 90 minutes, and while wet on the outside, my legs were bone dry.

    I always think they're going to be too hot for sweaty activities in cold temps, but they're not. They flawlessly modulate my body temp, whether I'm just walking or working hard. They shed snow without issue, and only strong winds below 20 degrees will get through the durable fabric.

    I had a pair I purchased in 2006, and I just got another pair now that Arc'teryx offers a "Long". I'm 6'2", 200 lbs, and the Large/Tall fit me perfectly. It should be noted, my original pair show little sign of wearing out, just one small rip around the button. Pristine otherwise.

    Great All-Arounder Softshell Pants

      This softshell pant has served me well in cold, alpine backcountry ski conditions, resort side skiing and all-around winter sport play. Switching from a fully waterproof hardhsell pant to these almost waterproof softshell pants has given me a lot in comfort and maneuverability and sacrificed little in terms of performance. The fleece lining adds warmth and comfort that might be a little too much on a warm winter day, but for anything approaching 40 degrees these pants have been a great fit.

      Excellent winter pant

        This is an excellent winter weight softshell pant with great wind and water resistance. It would be too warm for non-winter use in most of the Lower 48. I used it recently on a climbing trip in the Alaska Range and found it perfect with or without long underwear underneath. I occasionally wore puffy pants over the top for warmth but never needed to wear shell pants to block wind or water, as I would with a less burly softshell like the Gamma AR.

        Fit is trim but not tight--definitely more roomy than the Gamma AR pant. The cuff fits snugly over ski boots (Maestrale RS) making gaiters unnecessary. It fits less than snugly over double climbing boots (Baruntse), but you could get away without gaiters in anything but deep powder. I would like to see a lace hook on the cuff like the Gamma AR has, to hold it down. I installed grommets in the cuff and added a cord running underneath the boot, which works.

        The roomy thigh pocket on the right side is great for a camera or other gear, but the velcro closure will let in snow if you get buried by spindrift or take a fall in powder--I'd rather have a zipper.

        Comfort and build quality are excellent, as expected from Arcteryx. Sizing: I wear a 32 waist/34 length pant and the Medium-Long is the correct size. Legs are plenty long and I have to cinch the waist belt fully.

        Sharp looks and good fit

          These are pretty sweet winter weight softshell pants. They are an athletic fit but not super tight so they do feel really comfortable without excessive bulk. The durability is a bit questionable for a pant this expensive. The second day out my crampon torn the inside leg but I guess that's the way it goes with sharp objects. Overall good pant though.

          Expensive, and worth every penny

          • Familiarity: I've put it through the wringer

          I've lived in two pair of these pants for the last two months in the mountains of china. They've kept me warm and comfortable through nasty winter weather; exceeding my every expectation. These pants are exceptionally comfortable, offer great protection, are easy to clean and fast drying... oh and the pockets! i love the pockets! the integral belt and drawstrings on the pant cuffs are wonderful touches. all-in-all an excellent pant. i can't think of a single change I'd make.

          Comfortable and Flexible

          • Familiarity: I've used it several times

          The sizes may be a hit-or-miss, depending on how particular you are on fit.

          The built-in belt is a big plus, keeping the torso area uncluttered with any belt loops. Pockets are streamlined, and almost feel too smooth with the surface to hold anything. However, the pockets hold keys, wallet, or any small hiking accessory without a problem. The leg pockets are gusseted and expand out as needed.

          The finish of the material, inside and out, is wonderful. The brushed interior insulation provided just enough warmth without being swampy when temps vary (trailhead vs. summit).

          The leg length is the only complaint. Even worn over mountaineering boots, the inseam seems to average a bit longer than needed, leading to a bit of extra-length bunch up.

          Gamma MX or Gamma SK? I ski in the Wasatch,...

          Gamma MX or Gamma SK? I ski in the Wasatch, about 25-30 days in the backcountry every year plus a Big Cottonwood season pass this year. My main focus would be a pant that works well for touring, but warm enough for some moderately cold resort skiing too. My go-to setup for the past several years has been a mid-weight capilene base layer with a 3 layer gore hard shell Arcteryx pant. This seems to work well for me on most typical Wasatch days. I must say, I am still skeptical about the lack of side zip vents in these new soft shells. So which to buy, MX or SK? Any recommendations? Windproof and breathable are probably the two most important qualities for me.

          Both the Gamma MX and SK models would work well for touring. Both will breath well even without vents. Personally I think the method of layering you have been using is the ideal way to layer for a ski tour here in the Wasatch. I like having a fully waterproof pant in case the weather turns nasty while you are out. Having vents is also ideal when you are really working up a sweat on a steep skin track.

          If you are willing to spend a few bucks more than what the MX pants cost I would recommend the Arc'Teryx Lithic Comp Pants. Those pants would offer the softshell fabric in areas where you need superior venting while still having goretex on the seat, cuffs, and front of the legs. They also have vents so you can ditch heat rapidly when things start to warm up. You can check those out on our site by entering the item #ARC004K into our search key.

          If you will be using the pants for mountaineering or ski mountaineering then I would recommend the MX since they have the perfect amount of stretch to the material and they will be warm while still being breathable.

          Does anyone know if these pants have eyelets...

          Does anyone know if these pants have eyelets at the bottom to bring paracord through it. I want to replace my gaiters.