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Men's Xenolith Yak Wool Mountain Sweater 2.0

Men's Xenolith Yak Wool Mountain Sweater 2.0

Our renowned men's yak and merino wool mountain sweater, with Polartec® Alpha® offering exceptional insulation for chilly conditions

Regular price $ 270.00 USD
Sale price $ 270.00 USD Regular price $ 250.00 USD
Sale Sold out


Size Guide

  • Polartec® Alpha® inside - a hi-tech recycled insulating poly alternative to down and fleece insulation, developed for the US Special Forces
  • Helps you maintain a comfortable body temperature at all altitudes
  • Ergonomic fit ensuring freedom of movement
  • S
  • M
  • L
  • XL
  • XXL


Now enhanced for even greater comfort. The men's Xenolith is an insulating technical mid layer inspired by traditional alpine guide sweaters and reimagined for the modern mountain adventurer.

Care Guide

Can be machine washed at 30°C. Do not use softener. Close any zips, wash with similar colours in a washing bag and dry on a line or rack.

Delivery & Returns

Free shipping on all orders over $250. Read more here.

Non sale items may be returned for up to 30 days, excluding underwear. Read more here.

35 Day Guarantee

We are so confident that you'll love your kora product that we offer a 35 day live & love or return guarantee. You can wear your kora pieces, and if you wish to return them for any reason you may do so for a refund*. Read more here.

*excludes underwear, gift cards and sale items.

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  • Unbeatable weight to warmth ratio.

    Made from our exclusive Hima-Layer™ Yushu fabric that is super-soft next to the skin, providing yak wool’s exceptional Himalayan-born warmth with merino wool adding resilience for improved durability.

  • Giving back to the Himalayan nomads.

    A collective of more than 90 families in the Yushu Tibetan Autonomous Prefecture, our friends live all year around at 4,500m.

    We buy this wool at a set mid-market rate throughout the buying season in order to offer price certainty, and in addition we pay a 10% stipend.

  • 35 day guarantee.

    You can wear your kora pieces, and if you wish to return them for any reason you may do so for a refund*.

    *excludes gift cards and sale items.

Warm mid layer with added insulation

Designed to be worn in colder conditions in the mountains, we have added Polartec® Alpha® to the interior - which was formulated for the US Special Forces - for added insulation.

Customer Reviews

Based on 42 reviews

High quality garments. A bit spendy though.

Marc L
Xenolith sweater

My third Kora product. Best sweater I've had. Ultra soft feel, light, very warm. I have the purple version and I get lots of great comments from ski instructor friends asking about it and the company.

David Jenkins
Simply Amazing!!

The Xenolith represents the pinnacle of both softness and warmth in a midlayer. The yak and merino combination creates a luxurious feel that will make pretty much anyone more huggable. Performance wise, it’s proven to be warm, breathable, and durable so far. I tend to wear it over a light or mid weight base layer, although it’s soft enough to be worn alone. The deep zip and mesh lining add to its technical chops, as does the Polartec Alpha. If there’s any quibble, it’s that the sleeves could be a tad shorter, but obviously that issue will vary depending on one’s height/arm length. I do wish Kora would make a hooded version and add a few brighter colors. As for the current Xenolith, they have a real winner that I highly recommend.

DeWayne Fliss
Great customer service !

Kora stepped up to help me with a problem I created with my mis-ordering and Beth offered to handle it in a very helpful way! Great service just makes a good product even better !!

Christopher Bjork
One of the warmest things I own

I started to feel warmer as soon as I put this on and it is so soft. Excellent quality and it washes great. I wear this almost everyday now during the winter.