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Suit up in the Alyeska for your all-out attack on the mountain.

If you attack the mountain with everything you've got each time you step onto your skis, you need the technically advanced Men's Mammut Alyeska Jacket for weather protection that is up to snuff with your level of riding. The guaranteed waterproof and breathable Gore-Tex soft shell keeps wet snow and bone chilling winds in their place while the regular fit and articulated elbows allow for complete freedom of movement. Adjust the helmet-compatible hood for a snug fit, cinch down the Lycra wrist gaiters, then point you tips downhill and let the mountain ripping turns commence.

  • The 3-layer Gore-Tex soft shell fabric provides all-weather protection that is guaranteed to be waterproof and breathable
  • Fully taped seams keep wet conditions out
  • Regular fit and articulated elbows allow a full range of skiing motions
  • Two way underarm zips provide ventilation when you are charging hard
  • Three-sided adjustable tailored hood is helmet-compatible
  • Stretchy, detachable powder skirt keeps snow out during the descent
  • Lycra gaiters seal around the wrists to keep the weather out
  • Asymmetric front zip prevents eliminates uncomfortable zipper contact on your neck or chin
  • Hermetic jacket-to-pants connection pairs nicely with your Alyeska pants and prevents the jacket from riding up while keeping snow out
  • Wrist pocket is perfect for a ski pass

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Mammut Alyeska Jacket - Men's

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Here's what others have to say...

Im 5-8, 155lbs. Tried on the medium and...

Posted on

Im 5-8, 155lbs. Tried on the medium and it kit pretty good, though a little long in the torso. Would a small be too small? I want to layer mountain hardwear thermostatic underneath.

Responded on

I am 5'9" and 155lb. The medium fits well and I also experience a longer fit. A jacket like this is meant to sit at the butt so that it prevents snow from going down your pants and also keep your butt from getting wet when you sit on snow. A small may be more fitting but the minute it gets cold and you want a puffy underneath it could get a little tight.

5 5

Bomber Jacket

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

I skied in this jacket all season and it performed great in the harshest conditions. I could always count on be warm and dry! You can tell Mammut put a lot of thought into this jacket. It has all the features you'd want in a resort shell and nothing more. My favorite feature is the duel zipper at the chin. This gives you some extra room around the next when you have extra layers.
Bottom performs and looks great.

Bomber Jacket
5 5

Great freeride coat

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

I've had every version of this coat because it is that good. The fabric is dope-WATERPROOF softshell. Burl, stretchy and breathable. Lots of pockets, arm pocket for RFID ski pass. The collar has a gusset so you can be all zipped up and not be choked. Lycra wrist gaiters keep pow out if you wear under the cuff gloves. This jacket has not changed since it was released 4 years ago- it's that good. (it used to have a high loft fleece bonded to the inside for the first 2 yrs, that's the only difference) It's a more versatile piece like this. Killer Jacket. Only downers are $ and it's too heavy for really big ski mountaineering objectives. It's a resort/bc jacket not an extreme jacket.

5 5


  • Gender: Male
  • Familiarity: I've put it through the wringer

About 5 years ago I bought Mammut's Comfort jacket - one of the prequels to the Alyeska. Five years later, I'm still excited every time I put it on.
The GORE soft shell material keeps water out and is more comfortable and softer than a traditional hard shell, and the cuffs, high-cut neck and zipper all help make this jacket great for nasty weather. It breathes well enough that I've done a little bit of skinning in it when the weather gets real nasty (windy and sideways snow), but it's still heavy enough that I almost always keep it in my pack until I'm pulling my skins.
The large breast pockets are easy to access with a pack on, and the internal ones hold goggles and snack without letting them fall or bounce out.
I love that the hood is large enough to fit over a helmet.
Despite heavy use in all sorts of weather the jacket still looks great, in addition to being waterproof (I've only retreated once, and only after a couple years of heavy use). The color (bright green) has only faded slightly, and dirt and grime washes off. The only stains are a few drops of black grease (might have come off a lift tower).
Overall fit is great - I'm pretty thin, and the jacket (unlike many) doesn't feel boxy or bulky. Arms and hood move with me, and the cut is low enough to keep snow out and wear with a harness without looking like a park rat.
Full disclosure - I am part of a GORE testing program, although I purchased and loved this jacket long before I joined the program.

5 5

one bad ass jacket

  • Gender: Male
  • Familiarity: I've used it once or twice and have initial impressions

Bought the Alyeska Pant about three years ago. Many days later they are in perfect condition and my favorite ski pants. Not surprised by the jacket. Huge quality and fit is fantastic. Zippers are really smooth. Way nicer than on my Arcteryx Sidewinder.

Responded on

I'm on the fence about this and the Sidewinder. Why is this jacket superior?

Responded on

This jacket looks promising but the new sidewinder with n80px face fabric is awesome. Its not as crinkly sounding and is very tough. For the money I would go with arcteryx, they are proven.

Responded on

Also the sidewinder is 1.26lbs vs mammuts jacket that is literally 50% heavier

Responded on

I own the sidewinder and last years version of this coat. I prefer the Mammut because it has more pockets, you can open up the neck without unzipping the main zipper and is a little more bomber. the sidewinder is great as well and is high quality but just not as good IMHO. one thing that mammut did with this years jacket was they took the high loft fleece off the inside back and shoulders whick i think was a mistake.