USDA certified bio-based eco-friendly and sustainable impact absorbing material. Soft tactile non-slip Neoprene padding ensures the highest levels of rider comfort while keeping the knee brace securely in position. Replaceable as a spare part. Soft-touch neoprene condyle padding further prevents slipping of the knee brace and comes in different thicknesses for a customized fit. Replaceable as a spare part. X-straps are profiled to avoid pinching the back of the knee when fully flexed. Nucleon Plasma embedded into the shin padding for additional protection. Non-grip upper and lower patella padding to avoid friction. High tensile strength buckles are robust while still being flexible for easy strapping and adaptivity. Inner-knee central buckles are mounted internally inside the frames to avoid contact with the bike. The RK-10 Knee Brace is available in four size (S, M, L and XL) for a more personalized and secure fit. Knee protector: EN 1621-1:2012 LEVEL 1