The Schutt Varsity Rib Protector is designed to add back and rib protection and fits with all Schutt Varsity Shoulder Pad models. The Energy Block Transfer System disperses the energy from hits over a wider area, so much less impact is felt by the player. Raised corrugation adds strength while 5mm vent holes help to circulate air. Size M fits shoulder pads size S-L. Size L fits shoulder pads size XL to 5XL.