Olefin is one of the most color fast fibers on the market and it is also one of the most naturally stain resistant. Thus, this fiber is best suited for indoor-outdoor carpet in both loop and cut styles. Olefin is an inexpensive fiber that performs well in wear tests, if the profile of the pile height is super low. If one adds air to the fiber to give it some bulk, so it feels good, it will not produce a carpet that looks good for longer than six months. This puffed-up Olefin will crush in time. Also, Olefin has such a low melting point it must have oil added to the fiber in order to survive the tufting process. When the carpet is finished, most American manufacturers do not spend the money to rid the fiber of all the oil. As a result the carpet crushes even quicker. The one exception to this process is a new type of Olefin fiber called "ComforTouch" by Shaw Industries. This new fiber is softer to the feel because this olefin fiber is scoured three times during the making then the fiber is treated with R2X. The result is a fiber that feels like cotton, resists soil and stains better than any other carpet, and wears extremely well. Olefin is best in the outdoor market or light traffic indoors.