Mammut Base Jump SO Hooded Softshell Jacket - Men's

A fine specimen of versatility.

When you need a jacket-of-all-trades, look no further than the Mammut Men's Base Jump SO Hooded Softshell Jacket. Designed to tackle everything from multi-pitch rock climbs to backcountry touring, the Base features Schoeller's Ecorepel textile, which is not only mud and water repellent, but also highly abrasion-resistant and mega stretchy for maximum mobility and performance. The front zipper touts two-way functionality, so you're able to dump excess body heat when necessary, while the slim fit allows you to layer atop it easily. Additionally, the pockets are harness and pack compatible, and the hood is helmet-friendly, so you never have to be without the necessities. So when you're packing for a trip that calls for a little bit of everything, make sure to reach for the Base Jump jacket.

  • A versatile, hard-wearing shell for year-round use
  • Ecorepel exterior is mud and water repellent
  • Textile is highly abrasion resistant and stretchy
  • Two-way front zip enables temperature regulation
  • Pockets are pack-compatible for unimpeded access
  • Slim fit assures unrestricted mobility and ease of layering
  • Reviews
  • Q & A

Fantastic Jacket

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

I purchased this jacket last week with the intention of using this specifically in the back country. This past Saturday I got out for a tour and was really impressed with the light weight, the ability to breath and comfortable fit. On Sunday afternoon I rode the lifts during a good storm (wind and snow). The intent was to test the jacket against harsh conditions. To my surprise the jacket worked great. The water proofing was excellent as was the protection from the wind. I did wear a light puffer underneath for warmth. Highly recommend this jacket!

Unanswered Question

Does it have pit zips?

what a soft shell should be

  • Size Bought: XL

So psyched on this new Base Jump SO. The Schoeller fabric is not a laminate like so many are these days. This means it is super breathable and wind and water resistant. Just what you want for skinning, alpine climbing and ice climbing. At $225 not a bad price and the fabric and build is high quality. Fit is trim but not so restrictive and runs true to size to slightly small.

Not since the earlier days of soft shell

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: large

Finally a soft shell made out the original Schoeller incredible fabric that is not a sweatbox. Not since the old Cloudveil Serendipity jacket has there been a soft shell that is tough as nails, super breathable and weather resistant like this. Seems like all new soft shells are like gore windstopper and others that are windproof and more water resistant, but don't breath at all. T hat is not the point of a soft-shell. It need to be tough and breathable. This Base Jump SO jacket is just that. Perfect for ski touring and ice climbing. This fabric can take a ton of abuse and water rolls right off of it. Best of all it is truly breathable but still blocks some wind. if you want waterproof throw on a hard shell. This thing also seems like a great value knowing it will last a long time. I'd say it runs true to size, has great sleeve length and if anything is an athletic fit, i.e., not big and boxy but just right.