Wool

Wool

Wool is the fiber derived from the specialized skin cells, called follicles, of animals in the Caprinae family, mainly sheep, but the hair of certain species of other mammals such as goats, llamas, and rabbits may also be called wool. Wool has several qualities that distinguish it from hair or fur. It is crimped, it has a different texture or handle, it is elastic and it grows in staples.
Wool’s scaling and crimp make it easier to spin the fleece. They help the individual fibers attach to each other so that they stay together. Because of the crimp, wool fabrics have a greater bulk than other textiles and retain air, which causes the product to retain heat. Insulation also works both ways; Bedouins and Tuaregs use wool clothes to keep the heat out.