Coir is the outside layer of the husk that surrounds the shell of the coconut (Cocos nucifera). It consists mainly of fibers, which have traditionally been used to manufacture rope, carpets, doormats, upholstery stuffing, brushes, etc.
Brown and white are the two types. Brown fiber which is obtained from mature coconuts is thick, strong and has high abrasion resistance, and is used in mats, brushes, and sacking. White fiber which is extracted from immature green coconuts is smoother and finer, but also weaker. They are generally spun to make yarn used in mats or ropes.