Famous for its extra-fine softness and silky hand, cashmere is the downy wool growing beneath the outer hair of the Cashmere goat; only a few ounces can be gathered per year. It takes about four years for one goat to produce enough wool to make a cashmere sweater. Cashmere’s high moisture content allows its insulating properties to change with the relative humidity in the air. Cashmere is used in luxury sweaters, jackets and outerwear.