PIT BOSS SPORT From the first time you put the Pit Boss helmet on, you can feel the difference. The ultra-light TriMatrix construction keeps weight to a minimum while still passing tough DOT standards. Also featuring Bell's innovative Speed Dial fit system, providing unmatched levels of comfort while drastically reducing the tendency for open face helmets to lift off of the head. Core Technologies • Lightweight composite shell • 3 Shell/3 EPS sizes for a compact fit • Innovative Speed Dial adjustable fit system.