Extra light carbon fiber padded RDX Pro knee pads are for almost all martial arts. Anyone who has ever experienced painful fights in training or elsewhere can definitely benefit greatly from these RDX knee pads. The padding is made of extra light carbon fiber fabric and the outside is made of non-slip elastic material. Research and development department tests have shown that they last approximately 30% longer than normal schooners. These protectors are revived even after multiple washes.