Carpet is one of the softest flooring materials available, providing a cushioned surface for your feet in almost any location. To ensure you get a style that’s appropriate for your space, it’s important to know the characteristics of the different types of carpeting available. Made with a variety of synthetic and natural fibers, the four most common materials being nylon, polyester, polypropylene, and wool, carpet is made by looping yarn through a backing material in a movement similar to sewing a button on a shirt. These loops can then either be left intact or cut at various angles and lengths. The way the loop is treated is known as the carpet pile.