Data sheet: Materials: Mesh material inside the knee. Outside in high-density polyester and 600D nylon. DETAILS: zipper and flap closure with plastic button clip. Double adjustment on the sides with Velcro. Schoeller Kevlar-reinforced vulcanized rubber on the inside of his right knee. Kevlar Armortex on the left knee. foam padding and extra patch on both knees. Mesh fabric for increased ventilation. 12 different materials. 60 panels. Weight 950 gr.