The Hard Shell Knee Pads feature a hard cap made for swiveling and sliding. These knee pads feature - foam padding, tricot lining and two elastic straps with hook-and-loop closure, making them lightweight and easy-to-use. The 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. The Hard Shell Knee Pads feature a hard plastic cap made for swiveling and sliding and are constructed with a thick EVA foam pad making them lightweight and easy-to-use. The Bucket Boss knee saver knee pads are great for swivel and slide applications like flooring, concrete and more.