Beaver is a type of cloth, very high quality, heavy, soft wool cloth with a deep. Used in overcoats twill and very heavily napped, and filled. Thick, gives excellent wear and very warm, resembles kersey. Length of nap varies with the cloth and its uses. Has luxurious look. Often light colored fibers added to nap to increase shine. Mostly used for warm coats. cotton beaver is used for caps, shoe linings, work cloths, Maritime clothes and sports clothes where work is required.