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Taiss ML Jacket - Men's
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Mammut Taiss ML Jacket regulates heat at altitude
The Taiss ML Jacket uses Polartec® Power Stretch™ fleece to wick moisture and regulate temperature at altitude, so the chill doesn't set in once we stop moving at the summit. Higher-placed, harness- and backpack-compatible pockets stay reachable under a pack or a climbing harness, and a flat-seam construction avoids chafing under a loaded strap. The face fabric and lining both run on recycled polyester, cutting down on new material without sacrificing stretch or warmth.
What Our Gearhead® Experts Are Saying:
"I've worn this on a ski tour where the climb had me sweating and the summit had me shivering within minutes, and it handled both without a layer change. The fabric wicks fast enough that I never hit that clammy, overcooled feeling at the top."
Details
- Fleece midlayer for climbing, ski touring, and mountaineering
- Polartec Power Stretch fabric wicks moisture and regulates heat
- Harness and backpack-compatible pockets stay reachable
- Flat-seam construction prevents chafing under a loaded pack
- Underarm gusset and thumb loops add freedom of movement
- Recycled polyester face fabric and lining cut down on new material
- Athletic fit layers cleanly under a shell for climbing or via ferrata
- Item #MAMU687
- Material
- [face fabric] 92% polyester, recycled, 8% spandex, [lining] 100% polyester, recycled
- Fleece Weight
- midweight
- Fit
- semi-fitted
- Length
- hip
- Hood
- none
- Pockets
- 2, backpack and harness-compatible, zippered
- Thumbholes
- yes
- Claimed Weight
- 12oz
- Activity
- hiking, camping, climbing, running, training
- Manufacturer Warranty
- limited 2 years
Related Categories
Frequently Asked Questions
How does the Mammut Taiss ML Jacket handle high-output climbing?
Polartec® Power Stretch™ fleece wicks moisture and regulates heat as you move. The face fabric is 92% recycled polyester and 8% spandex for stretch during reaches and scrambles.Can you reach the Taiss ML Jacket pockets while wearing a harness or backpack?
Yes. Its 2 zippered pockets are positioned to remain accessible beneath a climbing harness or backpack hip belt.How does the men's Taiss ML Jacket fit under a shell?
Its semi-fitted cut and hip length layer cleanly under a shell, while the hoodless design avoids extra bulk at the neck. At a claimed weight of 12oz, it works as a midlayer for active mountain use.Is the Mammut Taiss ML Jacket suitable as an outer layer for ski touring?
It is a midweight fleece, not a waterproof outer jacket; no waterproof membrane or rating is specified. Pair it with a shell for rain, snow, or exposed conditions.What construction details support movement and comfort in the Taiss ML Jacket?
An underarm gusset, thumb loops, and flat-seam construction support mobility and reduce chafing under a pack. The lining is 100% recycled polyester.









