For the windy days on the wall.

The Mammut Men's Ultimate Hooded Softshell Jacket utilizes a Gore Windstopper membrane for excellent wind-resistance and breathability while you're climbing. Articulated elbows ensure a full range of motion whether you're sending or belaying, and underarm zippers provide the ventilation and airflow your hard-working body needs. Mammut also added an adjustable hood, pre-shaped thumbholes that stay closed and out of the way when not in use, two side pockets that are always accessible even with a harness or backpack on, and an internal media pocket to protect your phone.

  • Gore Windstopper softshell (3-layer)
  • Articulated elbows
  • Underarm zippers
  • Adjustable hood
  • Pre-shaped thumbholes
  • Two harness- and pack-compatible side pockets
  • One internal media pocket
  • Reviews
  • Q & A

Versatile and capable

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: extra large

I purchased this Mammut ultimate softshell January 2018. I chose it specifically for the vented sides and hood. It is a bit lighter weight than a great vented Mountain Hardware softshell I have but even more versatile! Zipped up with hood on the jacket is very warm over an insulating layer. Once hood is off and vents open the jacket is a great wind protection while venting moisture and excess heat.

I live in Northwest Wyoming, outside Yellowstone, and wind is a constant. On our mountain ridges wind is a constant. As are the varying temperatures accompanying wind. I have not found any other softshell jacket more capable of addressing these varying conditions. I have worn the jacket 21 all day hikes, always under a full heavy day pack without any sign of wear or problems. It sheds moisture as any well made item with DWR coating does and very wind resistant in winds up to 50 mph, so far.

The fit is athletic and well designed but not quite long enough in arm and hem for 6' 5", but better than most. More companies need to make tall sizes but the thumb hole sleeves make them long enough for a very tall person when not using the thumb hole. The off side zipper can be annoying but a small issue.

I am very impressed with the design and function of this jacket and have found Backcountry to be as well. Always fast free shipping.

Thank you Lance

Great and versatile soft shell

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: large (but it fits very slim)

fits small and has a european cut to try on if possible or order a bit bigger. I'm 6'4 190 lbs and the large fits me well, but its definitely slim fitting, and I wouldn't be able to multi-layer underneath. I use it for hiking, cold weather mtb'ing, and may try it for some spring skiing if temp is 40 or higher. As others have said, it is a great wind blocker, and is awesome in regards to function with the zippers/pockets.
Cool gadget that i recently learned is that the side/vent zippers will lock in place if the zipper is pointed up, which I thought was super cool. Those swiss engineer some good stuff!!
Its an expensive piece, but the really good stuff typically is, and this piece does not disappoint.

Favorite Softshell

  • Familiarity: I've put it through the wringer
  • Fit: Runs small

I use this jacket for biking, hiking, and spring skiing. It does fit small so sizing up would be a good idea. The windstopper material works great on those colder days. This jacket sees lots of use in the fall and spring. This is easily the best softshell jacket I have ever owned.

like the Ultimate that I bought another

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: Med

Make no mistake this is nothing more than a glorified, feather weight, non-bulky, softshell jacket with loads of modifiable ventilation.
As long as one is careful with ski gear-edges this seems pretty durable.
This works well when the temp is above 15 F (when accompanied with a base layer, thin non-insulated Millet vest and microfiber neck gaiter). Besides the mesh inner lining, there is no significant insulation to speak of (desirarble), has no restrictive upper extremity motion or significant noise while tele/alpine, mogul skiing, skinning, snowshoeing. or fatbiking with a compact waist pack ("Wingnut gear").
Unless it colder, windy or stormy this is my go to jacket for 50+ days out of the season.
This newer version has a smaller arm circumference at the forearms (?for climbing? I don't climb...not perfect but not a deal breaker...) and the chest pocket is now external for one's phone (or tunes-I don't play music when I ski or bike)..
This is my lightest weight winter activity jacket but the hood (which I don't use) remains snug with a POC ski or Lazer bike brain bucket.
Depending on the cut, I normally wear either a small (Flylow Higgins) and a medium jacket (Mammut)...this fits well for me without bulk/weight (seems more like a European cut).

Hands Down the BEST Midweight Softshell

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: XXL

I first bought one of these two years ago on a whim. It had all the features I wanted--belay zipper on the front, full side zips for venting, decent hood, Windstopper fabric, great color, durable design. I was unsure and when I got it I knew it was perfect.

I just snagged my second one here on BC and it is a very nice updated version--new Gorestopper fabric, updated hood with interior cord adjustments, phone cord access, new colors, but still the same awesome concept and design.

This, hands down, is my go-to midweight softshell jacket. Don't even consider anything else. Yes, it is an investment, but it is worth it. There are lots of

Ultimate Hoodie

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: XL

Almost awesome Jacket.
Pros: Great windproof protection. Lightweight, yet great for zero temps with proper underlayers.
Huge pockets with mesh linings to act as vents when open.
Cons. Full side zipper comes unzipped at the bottom when the jacket gets any stretch in the waist.
Side zippers(vent). Does not have mesh lining (open).

turn the zipper pointed up--this locks it and keeps it in place. if pointed down it will move. actually a pretty cool gadget in my opinion.

Unanswered Question

are there umm any photos of these jacket,unzipped?,etc

be nice to see how the material might lay across the front shoulders

and also the inside material style/design of it

Love the color, design and material

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: M

Update on 7/22/2015:The hood is not large enough for complete helmet compatibility. Very tight when I zip it up entirely. So I adjusted it from five stars to four stars.
Love everything about this! Deep waist pocket for goods and hand warming. Convenient chest pocket for cellphone. Two way zip for harness and belaying. Other zips for quick warmth release. Very wind proof. Hood enough for hamlet but not too large, right on size.

Love the color, design and material

Zheng be thy name!

Awesome picture Zheng!!!

I selected this image to feature on the Community Hub at the bottom of the homepage! Congrats on being amazingly GOATWORTHY !!


How does the fit and warmth compare to that of the Gamma MX?

I don't have the Gamma MX, but did try out the Gamma MX prior to getting the Acto MX. I would say that the Gamma is warmer than the Acto, and the Acto is pretty comparable (maybe even slightly warmer) than the Mammut.

The Mammut's fit, at least to me, seems more athletic than either.

Best Answer

I have both the Mammut Ultimate Hoodie and the Gamma MX (non hooded) jacket. The big difference between the two is the Gamma doesn't block wind as well and therefore may be not warm enough on windy cold days. Also the Gamma has a light fleece backing whereas the Mammut is strictly a shell, no insulation. I find the Mammut to be extremely versatile with the pit zips so if wind abates you can just open it up a bit for better breathability. My Mammut is my primary winter shell.