Come and see our amazing products. These leg knee pads are made of silicone, nylon and spandex. It helps reduce knee joint fatigue from intense exercises and heavy usage. Crash, non-slip, breathable, comfortable, high elasticity. Guides the knee cap into proper motion; Effectively relieves post-surgery knee pain, strains, and arthritis Sizes and colors for your choice Good ventilation. Pls confirm with us about the packing info, stock color and exact production time before placing your order.