The AltaFLEX Black Cordura Knee Protector Pad is a durable, flexible, and adjustable pad that is designed to protect your knees from rocks and debris. The pad is made of thick, flexible, abu-colored Cordura nylon and features the original AltaLOK easy on/off fastening system. The Alta Strapkeeper system secures excess straps from flapping, and the pad is adjustable to fit most sizes.