Non-slip silicone strap inside, so that the knee pad can not slip
XRD® Extreme Impact Protection Pads: special padding with maximum cushioning properties. XRD is a very durable, abrasion-resistant, textured nylon. It is quick drying and water repellent, so moisture beads off. Unlike cotton, polyester and conventional nylon, XRD has a much higher abrasion resistance and is perfect for use in goalkeeper clothing.