These non-marring, premium, gel-lined knee pads feature a PVC hard cap. The closures at the thigh and calf are adjustable and the thigh includes a buckle for easy donning and removal. They are ergonomically curved for a comfortable fit. Non-marring, premium gel-lined style. Breathable, stretchable body. PVC hard cap. Padded thigh strap, neoprene calf strap. Great for use on carpet. Ergonomically curved fit. Adjustable thigh and calf closures. Gel-Lined.