The No Rock Gel Knee Pads feature a gel-padded body that is molded around the knee for the most advanced protection. Durable neoprene lining and straps give extra flexibility and support. These hard cap knee pads are ideal for swiveling or sliding and are designed with a 2-strap system for additional comfort. This strap system is comprised of a neoprene bottom strap that tightens firmly for support, and an elastic top strap that holds the pad in place without causing discomfort. Both straps are adjustable and attach with a buckle post closure.