Wool
Wool is the most frequently used pile material in handmade rugs because it is soft, durable, easy to work with and not too expensive. This combination of characteristics is not found in other natural fibers. Wool comes from the coat of sheep
Fibers from animals such as goat or camel are considered hair, and even though the use of some hair in rugs adds shine, their extensive use is undesirable because they do not dye well. Moderately coarse wool is more durable than fine wool, and the sheep producing this kind of wool can usually be found in the Middle East. In general, wool from sheep grazing at high altitudes is superior, and very high quality wool can be found at high altitudes of the Caucasian mountains and mountainous areas of Iran. Wool from China, Australia and New Zealand is also very good. Natural wool comes in colors of white, brown, fawn, yellow and gray, which are sometimes used directly without going through a dyeing process.