The hair of other mammals such as goats, llamas, rabbits, and keeshonds may also be called wool. Wool is crimped, it is elastic, and it grows in clusters. Because of the crimp, wool fabrics have a greater ability to retain air than other textiles, which causes the product to retain heat. Insulation works both ways. Kashmiri wool is super soft and super smooth. It is not itchy or scratchy like other wool products.