At Work Double Duty Socks are made from a blend of wool, acrylic, stretch nylon and Olefin.
Because wool carpet is so expensive, most consumer-grade Berber is made from either nylon or olefin.
Berber carpet, including carpet tiles, is typically made from one of three materials - wool, nylon or olefin.
Carpets with loops are typically made from olefin, such as Berber.
Less pricey versions are usually made from synthetic materials such as nylon, olefin and polypropyline instead of wool or silk.
Nylon and olefin Berber are much more durable and easier to clean.
Nylon is also an expensive yarn when compared to acrylic, olefin or polyester.
Olefin is another nearly indestructible carpet fiber, similar to nylon.
Other recent projects and reviews " Transition metal imido compounds as Ziegler-Natta olefin polymerisation catalysts " .