Impacto GELite Hard Shell Knee pads. Built using a solid injected Gel insert. Breathable mesh outer fabric. Plastic sewn on outer cover. Breathable pad and a soft durable neoprene liner ensures protection and comfort. Enlarged hard outer shell offers extra protection. Elastic double straps (1.5 wide x 14 long inch, without stretch). Quick clip plastic fastening system provides easy adjustment. Helps prevent knee and hip joint stress. Provides long term protection from cumulative trauma injuries. Non-marring cover prevents scuffing or marking delicate surfaces. Sewn cover keeps debris out. Great for maintenance, manufacturing, construction and industrial applications. Made with 100% PVC-free materials for a clean environment. One Size Fits All