To appreciate the differences between the different materials of carpets offered, we need to understand how carpets are constructed.
By nature of the manufacturing process, all carpet is either Cut Pile or Loop carpet. The manufacturing of carpet involves sewing strands of yarn into a backing material. Left alone, this creates a Loop-style carpet. When these loops are cut, we have a Cut pile style of carpet.
These two techniques can be combined to create different styles and textures of carpet.