7 idp youth flex knee padthe 7 idp youth flex knee pad features the best parts from the seven range all rolled into a mid weight pad featureslightweight flexible protection built with impact hardening foamcompression fit via polyspandex and 4 way stretch chassis with internal silicone grip certification en1621 2 2012weight 435g per sidebuy7 idp protectionfrom chain reaction cycles the worlds largest online bike store