Carpet Fibers
Nylon: This is the most popular synthetic carpet fiber used today. It offers tremendous value, performance, and ease of maintenance. Nylon provides brilliant colors and hides soil and traffic well.
Olefin: This fiber is also called polypropylene, and is extremely popular in Berbers and level loops. Olefin carpets are highly stain, static, mold, and mildew resistant. They can be used for indoor or outdoor carpets, including outdoor turf. Their resistance to matting and crushing are not as good as a nylon fiber.
Polyester: Gives excellent color clarity with a soft feel to the carpet. Lacks the durability of a nylon carpet.
Acrylic: Has a real wool look and appearance. Used mainly in level loops, bath mats, and some velvet carpet styles. Offers good mold and mildew resistance with low static levels.
Wool: Although somewhat expensive wool still offers great bulk, performance, and an elegant look.
Special Note: Berbers are really big bulky yarns that are either produced in a level loop, or multi-level loop construction. Most berber carpets are made from olefin fibers, or a blend of various carpet fibers.