Made of 840D Nylon, the 340 Slip-Resistant Rubber Cap Knee Pads with Shin Guards protect your knees and shins from scrapes, bruises and minor injuries while working. Foam padding made with nitrile rubber (0.5"/12mm thick) maintains its shape over time while hugging the knee for added support. Rubber cap grips wet or dry surfaces to prevent constant slipping on the job. Nickel-plated, grommet holes surrounding hard cap add an extra layer of protection so the hard cap stays in place. Straps in the back keep the knee pads and shin guards in place throughout the day. Easily adjust strap comfort with buckle closure. Long cap size provides more material and a bigger hard cap for extra support. Pads are ideal for work that involves continuous use on your knees.