DeWalt® DG5224 Heavy Duty Dual Layer Flooring KneepadsHeavy duty dual layer, ballistic poly fabric and tough, textured pvc outer shell provides extra durability and protects finished surfaces from scuff marks. Neoprene fabric liner helps keep knees comfortable throughout the day. High density, closed cell foam padding with core technology helps reduce pressure on kneecap for extra comfort. Slip buckle fastener system with adjustable straps. Neoprene fabric liner helps keep knees comfortable throughout