riddell power spk+ adult football shoulder pads - qb/wr riddell the riddell power spk+ adult football shoulder pads - qb / wr feature updated corrugations for improved strength. designed for maximum mobility of the arms, these pads feature a stac system which provides protection to the ac joint while allowing maximum mobility. ripkord technology is a great safety feature that utilizes a cord strategically integrated into the shoulder pad, where in an emergency situation, can be pulled out to separate the pads for easy access to the player. small deltoid pads and screw on back plate for additional protection.