When a job often requires kneeling, knee pads are necessary. We carry knee pads for hard surfaces and for softer surfaces that are more susceptible to damage. The pads are either soft and flexible or hard. Materials knee pads are made of include rubber, abrasion resistant plastic, polyester, foam padding, and gel. The gel in the knee pads will not compress after constant use. Some softer knee pads can come without straps. These types of soft knee pads will fit into double pocket Carhartt pants and can be washed inside the pants.