Yak Wool Hiking Underpants

The Benefits of Yak Wool at a Glance

• Temperature-regulating

  Keeps you warm in the cold and cool in the heat by supporting your body’s natural temperature regulation.

• Breathable

  Wicks moisture away from the body 66% more effectively than merino wool, ensuring a comfortable wearing experience. The most breathable wool on the planet.

• Insulates against Cold & Heat

  By insulating against the cold 40% better than merino wool, it keeps you comfortably warm even in the deepest sub-zero temperatures. In summer, it insulates against heat, so you’ll never get too hot on the mountain.

• Prevents Heat Build-Up

  Excess heat is effectively released to the outside, so you won’t overheat even during strenuous activities.

• Keeps You Warm Even When Wet

  Can absorb up to 35% of its own weight in moisture without losing its insulating power. Even after absorbing moisture, it offers more protection than other materials.

• Protects against evaporative cooling

  Minimizes evaporative cooling on the skin by immediately wicking moisture away, thus protecting against hypothermia in high mountains.

• Highly Water-Repellent

  Protects against light precipitation, wind, and fog.

• Highly Wind-Resistant

  Highly wind-resistant properties and a dense knit guarantee reliable protection against icy high-altitude winds in the high mountains.

• Quick-Drying

  Dries twice as fast as cotton and 17% faster than merino wool.

• Lightweight

  Best weight-to-warmth ratio of any wool on the outdoor market.

• Anti-bacterial and strongly odor-resistant

  Keeps you free of unpleasant odors for up to a week, even during sweaty activities.

• Protects against UV rays

  UPF 50+ for the highest UV protection in high-altitude mountain regions.

• Antistatic & Flame-Retardant

  Naturally antistatic, flame-retardant, and self-extinguishing.

• REDUCED INFRARED SIGNATURE

  Naturally possesses a reduced infrared signature in the near-infrared range (NIR-compliant)*

• Soft & Itch-Free

  Incredibly soft material that is itch-free and reduces friction against the skin.

• Durable

  Heavy, robust knit for a long lifespan. Up to twice as resistant to pilling as merino wool.

• Sustainable

  Sustainable sourcing of raw materials that preserves the high plateaus of Central Asia. Fair production by a local manufacturer in Mongolia.

• SUITABLE FOR PEOPLE WITH ALLERGIES

  Naturally free of lanolin, non-irritating, and breathable, making it particularly well-suited for people with allergies.

*Does not apply to our black wool.

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Coming
Early 2027

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Heavyweight Yak Wool Socks

Heavyweight socks made of 100% super-soft yak wool that keep your feet warm and dry on the coldest winter days. Ideal for cold-weather trekking, ice climbing, ski touring, and winter hunting.

€90.00

Coming
Early 2027

• 
• 

Midweight Yak Wool Socks

Midweight socks made of 100% super-soft yak wool provide excellent temperature and moisture regulation to keep your feet dry even during strenuous activities. Ideal for hiking and trekking from spring through fall.

€80.00

Coming
Early 2027

• 
• 

Men’s Yak Wool Boxer Shorts

Men’s boxer shorts made of 100% yak wool. Their excellent temperature and moisture regulation ensure maximum comfort and uncompromising performance year-round—right where it matters.

€80.00

Coming 2027

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• 

Women’s Boyshorts made of Yak Wool

Women’s boyshorts made of 100% super-soft yak wool. Their excellent temperature and moisture regulation ensure maximum comfort and uncompromising performance year-round—right where it matters.

€80.00