Tibetan yak wool

Our softest socks yet

Yak is softer than any fiber we’ve found except cashmere, and our yak socks are as warm as our bison socks. It’s hypoallergenic, naturally antimicrobial, and insulates without overheating. We knit it into an everyday crew that fits in a dress shoe, a full-cushion boot sock for the coldest days, and a beanie that’s thin for how warm it is.

Free shipping over $30. Free returns and exchanges.

Man in cuffed jeans resting a leather boot on a truck tailgate in Colorado snow, wearing the olive striped Yak Wool Everyday Crew Sock
  • HypoallergenicGentle on sensitive skin
  • Naturally antimicrobialFights odor without treatments
  • 1 lb of trash removedEvery product funds a pound of cleanup from oceans and waterways
  • Free returns and exchangesTry it. Send it back if it isn’t right.

Three ways to wear yak

Everyday crew, 2 pack

Yak Everyday Crew Sock, 2 pack

4.9 from 52 reviews

Streamlined, no bulk. Fits dress shoes and slim boots.

  • Wide ribbed cuff stays up without binding
  • 33% wool, 17% yak, 26% polyester, 22% nylon, 2% spandex
  • Two pairs, four stripe colorways
$48.00Shop

Boot sock, full cushion

Yak Full Cushion Boot Sock

5.0 from 3 reviews

Full cushion through the footbed for all-day wear.

  • Insulates without overheating
  • Moisture-wicking, extra soft hand feel
  • Solids and stripes
$48.00Shop

Beanie, half yak and half merino

Classic Yak Beanie

5.0 from 7 reviews

Deep-winter warmth without the bulk.

  • Yak wool is 30–40% warmer than merino at the same weight
  • Merino adds stretch and shape retention
  • One size fits most
$60.00Shop

What yak wool does

More heat from less material

Yak wool runs 30–40% warmer than merino at the same weight, so we can use less of it to get the same warmth. The sock stays slim, the beanie stays thin, and neither one overheats.

Hypoallergenic, antimicrobial, no itch

Yak fiber is gentle on sensitive skin and naturally antimicrobial, which is why it fights odor on its own. Moisture-wicking keeps feet dry.

  • S/M fits women’s 6–9, men’s 5–8
  • M/L fits women’s 10–12, men’s 9–13

A beanie that’s thin for how warm it is

Most beanies make you choose: warm but bulky, or comfortable but not quite deep-winter warm. Half yak, half merino means you don’t have to.

What people say after a winter in yak

4.9 average from 52 reviews on Calcetín de lana merino para senderismo

The Yak Wool crew socks are some of the softest, most comfortable socks I have ever worn. They are well made and fit well. My wife and I both love them.
Donald K., Yak Wool Crew Sock 2-Pack
Wonderful, cozy socks. They are breathable and comfy for anything ranging from a cold Wisconsin winter to a more mild south Texas winter.
amy n., Yak Wool Crew Sock 2-Pack
These are genuinely the best, softest socks ever. Keeps my feet warm but never sweaty. I have recommended them to anyone who will listen.
Samantha G., Yak Wool Crew Sock 2-Pack
Sock are soft and really warm. Wore them when it was 6°F out, and had no problems.
William D., Yak Wool Crew Sock 2-Pack
Just as warm and functional, just softer than the bison socks!
Sebastian T., Yak Wool Full Cushion Boot Sock
I wore this hat when I was outside shoveling snow, while it was still snowing. It kept me perfectly warm, even when it was covered in snow and wet. I didn’t even notice it was wet until I came inside and took it off.
William D., Classic Yak Beanie

Questions people ask before they buy

How does yak compare to bison?

Both are as warm as our socks get. Bison lasts longer. Yak is softer: it’s the softest fiber we’ve found other than cashmere.

Will yak wool irritate sensitive skin?

No. Yak wool is hypoallergenic and gentle on sensitive skin.

Do these socks help with odor?

Yes. Yak wool is naturally antimicrobial, which helps fight odor over time.

Are the everyday crew socks cushioned?

They’re a sleeker, low-bulk sock. For full cushion, choose the Yak Wool Ultimate Full Cushion Boot Sock.

What sizes are available?

S/M fits women’s 6–9 and men’s 5–8. M/L fits women’s 10–12 and men’s 9–13. The beanie is one size fits most.

How warm is yak wool compared to merino?

Yak wool runs 30–40% warmer than merino at the same weight, so a thinner knit gives the same heat.

Every pair takes a pound of trash out of the water. The 2-pack takes two.