These lightweight, hardwearing knee pads incorporate closed-cell foam padding for shock resistance and little or no moisture retention, while contoured interior ledges prevent pads from slipping downward. • 600 denier nylon shell• Injection-molded flex cap design• Minimizes gap between bottom of cap and nylon carrier when flexed• Padded side extensions for additional comfort and improved strap positioning• Hook & loop elastic straps keep pad in place