Cashmere is a fiber obtained from cashmere goats. It is the soft hair from the undercoat of the cashmere goat grown to its maximum length by mid-winter and shed in early spring. Cashmere is finer, stronger, lighter, softer, and much more insulating than sheep wool. It has been used to make yarn, textiles, and clothing for hundreds of years. Claims have been made that Napolean Bonaparte's wife helped to popularize the fabric and as time went on, it's popularity skyrocketed among the elite.