Our industry leading CLC Ultraflex 361 kneepad design has a soft outer shell with an accordion-style upper cap, high density, closed-cell foam padding, and synthetic rubber straps, which all combine for enhanced comfort and protection. The soft, flexible outer shell protects and grips most surfaces without scratching or scuffing. Contractors will love the high density, closed-cell foam for all day comfort and durable Memory-Flex synthetic rubber straps that are adjustable to fit most sizes.