TSE Safety Hex-Pro knee pad is a great general purpose knee pad that has a super durable flexible front cap providing protection from sharp hard surfaces. The main body is made of Nylon-Cardura outer material and soft neoprene liner. The neoprene liner coupled with the EVA inner foam padding with gel insert provide the utmost comfort. The 1.5" woven Nylon elastic straps with locking clip allow for almost unlimited adjustment.