Composition: 100% organic yak wool. When creating yak down garments, we do everything possible to preserve the unique natural qualities of the fiber and impart maximum softness, lightness, and warmth. For care, we recommend hand washing at temperatures up to 30°C (86°F), without bleach. Gently wring out the excess water, lay flat to dry, and iron with steam at low temperatures. Dry cleaning is also acceptable.