The Stallion 500 arm guard are low definition pads that give players the confidence to get to the cage with all the mobility they demand. Low profile means minimal bunching and snagging and maximum range of mobility. We recommend that all younger players wear arm guards when they get to the middle school age and these STX pads simply flew off the shelves. STX slightly slimmed down forearm section, to fit in better with the gloves. And the second big change was also on the forearm where the Velcro strap wraps all the way around the pad to lock it down rather than being attached to either side of the bad and bending it around the arm. This 360 fastening system really keeps the pad in place!