Nylon was the world's first completely synthetic (man-made) yarn. This versatile fiber is oil resistant and hides soils quite exceptionally. It is very resilient and performs well in high traffic areas, which makes it the most popular type of synthetic carpeting on the market today. One note of caution: Nylon can be susceptible to permanent staining. For this reason it's highly recommended to have fabric protector applied at the time of your professional carpet cleaning to extend the life of your carpeting.