The Pro Line Knee Pad is the most progressive skateboarding knee pad on the market. The performance-focused design utilizes D30 foam for class-leading impact absorption in a thinner and more flexible pad. This means more protection, comfort and maneuverability. With removable D30 foam, replaceable caps and a reusable mesh bag, every last detail of the Pro Line Knee was designed with high performance skateboarding in mind. Pro Tec Skateboard Pads Pro Line Knee Black Size XL