Most people know that court shoes are different from regular shoes, but many people don't realize that there are different types of court shoes. Volleyball shoes differ because they have different types of rubber in different areas on the bottom. The rubber that has the most friction typically goes on the balls of the foot, a thin piece along the outside edge, and the heels. This is because volleyball players spend most of there time on there toes. The friction between the rubber and the court prevents the player from slipping because the rubber causes a larger force of friction.