The rekd ramp knee pads are ideal for a wide range of action sports including vert skating roller derby and scooting the double strapping gives you a secure fit around your legs while the lining sock provides comfort behind your kneesproduct featureshigh density impact pro ramp capscountersunk rivetingdouble strappinglining sock for extra comfortcertified to en141202003 and a12007 standardssizing for this productsmallknee pad top strap length 266cm bottom strap length 26cm will fit us