- The traditional denim is 100 percent cotton serge. Additionally, denim is often blended with other fabrics.
- Raw denim is dark, unwashed fabric that is stiff and very durable. It fades with wear in certain areas, creating a natural distressed look. It also fades with washing.
- The premium type of raw denim fabric is selvage denim, with tight weaving and natural edges that will not unravel. Selvage denim is more expensive than other raw denim.
- The blend closest to pure denim is called stretch denim, which usually includes 2 or 3 percent Spandex material for a bit of give in the fabric.
- Poly-denim blends look like a dressier denim, and are more lightweight, which makes them more convenient to wash and dry. They also are more resistant to wrinkling.
- Denim is also sometimes blended with the plant fiber ramie, which reduces wrinkling and gives the fabric a softer feel.