The fiber used in Reywa yarns is the down under-layer of a yak’s winter coat. With a diameter of 15-20 microns, it is comparable to cashmere in softness while being 10-15% warmer than merino wool. Naturally hypo-allergenic, it remains warm even when wet. Natural breathability helps the body regulate its heat, keeping the wearer warm in the cold and cooler when temperatures rise.
Yak down is extremely rare, with each animal producing an average of only a kilogram of fiber annually. In comparison, a tiny German angora rabbit produces approximately the same amount! The rarity of yak down and the remote corners of the world in which it is found add immediate value to this lovely fiber.