Felt is a textile that is produced by matting, condensing, and pressing fibers together. Felt can be made of natural fibers such as wool or animal fur, or from synthetic fibers such as petroleum-based acrylic or acrylonitrile or wood pulp–based rayon. Blended fibers are also common. Natural fibre felt has special properties that allow it to be used for a wide variety of purposes. "It is fire-retardant and self-extinguishing; it dampens vibration and absorbs sound; and it can hold large amounts of fluid without feeling wet..."
Felt from wool is one of the oldest known textiles. Many cultures have legends as to the origins of felt making. Sumerian legend claims that the secret of feltmaking was discovered by Urnamman of Lagash. The story of Saint Clement and Saint Christopher relates that the men packed their sandals with wool to prevent blisters while fleeing from persecution. At the end of their journey, the movement and sweat had turned the wool into felt socks.
Most likely felt's origins can be found in central Asia, where there is evidence of feltmaking in Siberia (Altai mountains) in Northern Mongolia and more recently evidence dating back to the first century AD in Mongolia. Siberian tombs (7th to 2nd century BC) show the broad uses of felt in that culture, including clothing, jewelry, wall hangings, and elaborate horse blankets. Employing careful color use, stitching, and other techniques, these feltmakers were able to use felt as an illustrative and decorative medium on which they could depict abstract designs and realistic scenes with great skill. Over time these makers became known for the beautiful abstract patterns they used that were derived from plant, animal, and other symbolic designs.
From Siberia and Mongolia, feltmaking spread across the areas held by the Turkic-Mongolian tribes. Sheep and camel herds were central to the wealth and lifestyle of these tribes, both of which were critical to producing the fibers needed for felting. As nomads traveling frequently and living on fairly treeless plains, felt provided housing (yurts, tents, etc.