Flat Pad Design Keeping a low profile means the cap. sits on the humerous and epaulet. Its on the crown of the shoulder pad don't interfere with a player's helmet when rotating side to side.
Corrugated Arches Riddell's arches. The molded plastic that sits over the shoulder and on top of the padded liner are enginnered using a design element called "corrigation". That stiffens and strengthens the structure to reduce weight without also reducing the protective qualities of the component.