Guanacos have a double coat similar to cashmere; the under coat is a fine fiber one of the finest natural fibres in the world, and boasts a uniform and very pale camel colour. The outer coat consists of much coarser fibres, guard hairs, these are a much darker cinnamon (the belly and neck contain white guard hairs) and act to keep debris and moisture out. Guanaco fiber must go through the dehairing process which removes these coarser guard hairs and leaves the downy undercoat which is the valued part of the fleece. The average weight of fleeces is about 750 grams although some breeders have some guanaco that produce nearly 2 kilos. The fleece of the Guanaco is technically made up of hairs with a medullated core and should therefore be called fiber not wool. The processing to remove the guard hair and the (generally) lighter coat, as well as the scarcity of guanacos outside of South America all lead to the premium price of this fiber. Of all the world's furbearing animals the guanaco's wool is second only in fineness to that of its wild cousin, the vicuna.