Yak Wool Crew Neck Sweater
We are delighted to add this 100% yak wool sweater to our selection of high quality woolens. Khullu, the soft underfur of yak, is sourced from the Shoki Coop in the Tibetan highlands. The yarn is lighter and warmer than Merino wool or cashmere, and is naturally odor-resistant. Oliver Charles designed the sweater in San Francisco, then produces the garments in Brooklyn using modern 3D-knitting machines that create no waste. The resulting sweaters, similar to our Lothlorian sweaters, have few seams, drape well and are very comfortable. The crew neck sweater is knitted in garter stitch for added texture, with ribbed neckband, hem and cuffs. The back length of a size Medium is 26 inches. Weighs about one pound. 100% yak wool. Hand wash, dry flat. Color is Natural Brown. Made in USA.
We are delighted to add this 100% yak wool sweater to our selection of high quality woolens. Khullu, the soft underfur of yak, is sourced from the Shoki Coop in the Tibetan highlands. The yarn is lighter and warmer than Merino wool or cashmere, and is naturally odor-resistant. Oliver Charles designed the sweater in San Francisco, then produces the garments in Brooklyn using modern 3D-knitting machines that create no waste. The resulting sweaters, similar to our Lothlorian sweaters, have few seams, drape well and are very comfortable. The crew neck sweater is knitted in garter stitch for added texture, with ribbed neckband, hem and cuffs. The back length of a size Medium is 26 inches. Weighs about one pound. 100% yak wool. Hand wash, dry flat. Color is Natural Brown. Made in USA.
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Oliver Charles is a San Francisco–based clothing company founded in 2020 by lifelong friends Slater McLean and Jack Gerstein. Inspired by years spent outdoors, they set out to make exceptionally comfortable, durable clothing designed to be worn often rather than replaced with every new fashion trend. Their search for high-performing natural materials led them to khullu, the soft down fiber of the Tibetan yak, prized for its warmth, breathability, softness, and natural odor resistance. Oliver Charles combines these distinctive fibers with modern 3D-knitting techniques to create versatile sweaters made for everyday wear. These sweaters are designed in San Francisco and knitted in Brooklyn, New York. At the heart of the company is a refreshingly simple philosophy: own fewer, better clothes—and wear the ones you love again and again.
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Yaks have a coarse outer coat to shed wind and weather, and beneath it a remarkably fine layer of insulating down called khullu. This soft undercoat, typically about 16–20 microns in diameter, keeps yaks warm through the bitter winters of the Tibetan Plateau. Khullu makes an exceptional sweater fiber: soft enough to wear next to the skin, warm without being heavy, breathable, and naturally resistant to odors. It also stands up well to regular wear.
Khullu is a renewable natural fiber, gently combed from yaks as they shed their winter coats each spring. Yaks are well suited to the fragile high-altitude grasslands where they graze, and, unlike cashmere goats, graze without pulling plants out by the roots. Oliver Charles sources its khullu through a traceable Tibetan cooperative that supports local communities and grassland conservation. Durable, biodegradable and requiring relatively little washing, khullu fits well with the simple idea of buying good clothing and wearing it for a long time.
Like many of the best natural materials, khullu is quite simply well suited to the job.


