Damascus DBKB Phantom Ops1 Modular Low Profile Knee Pads 1 Piece PVC alloy knee caps with 10mm soft EVA closed cell foam molded to a form fit Breathable and durable anti-snag outer fabric Two Adjustable straps for proper fit which lock securely in place Static lower strap to cinch down on the calf and an elastic upper strap to cinch down on the thigh One size fits all