Yak Wool

Yak wool is one of the world's most extraordinary natural fibers, rare, resilient, and deeply connected to place. Harvested from free-ranging yaks across the Tibetan Plateau, Mongolia, Nepal, and Bhutan, the fine undercoat measures 16 to 20 microns, placing it firmly in the luxury fiber category alongside cashmere. It is exceptionally warm, lightweight, breathable, and naturally colored in rich browns, greys, and creams that reduce dye needs entirely.

The environmental profile is genuinely low-impact when scale is respected. Yaks roam alpine grasslands above 3,000 meters where few other livestock can survive, and their migratory grazing patterns exert far less pressure on soil than fenced systems. Fiber is collected during seasonal molting through gentle combing, never forced shearing. Supply is inherently limited, each yak produces only a few hundred grams of fine down annually, and that scarcity should be treated as a design constraint, not a sourcing problem to solve.

The sourcing risks center on traceability and over commercialization. Aggregated supply chains can obscure origin and herding practices. Brands should work directly with small-scale or nomadic herders, verify seasonal and non-invasive collection, and use yak wool in limited, premium applications. mYak, Shokay, and Koziyak are among the most transparent cooperative-linked sources available. There is currently no single certification standard equivalent to RAS, so supplier relationships and documentation carry the full weight of due diligence.