Body-mapped, impact-absorbing SmartFlex™ pads Armortex technology adds durability to pads and resists tearing or catching Soft inner foam keeps pads secure and comfortable Adjustable fit-strap for customised comfort Extra wide top gripper distributes pressure and keeps pads in place Low-profile bottom gripper keeps pads from riding up Ultra-comfortable double-knit compression fabric for extra protection Ventilated mesh back keeps the wearer cool and dry Lightweight, flexible pads that move with the body Machine washable CE-1621 certification Measure 8" above kneecap Measure around largest point XS 46 - 46 cm 28 - 33 cm S 46 - 48.5 cm 33 - 35.5 cm M 48.5 - 51 cm 35.5 - 38 cm L 51 - 54.5 cm 38 - 40.5 cm XL 54.5 - 58.5 cm 40.5 - 44.5 cm XXL 58.5 - 63.5 cm 44.5 - 48 cm