Lightweight Classic. 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. The Pit Boss also features Bell's innovative speed dial adjustable fit system which provides unmatched levels of comfort while drastically reducing the tendency for open face helmets to lift off of the head. And, with additional features like a removable neck curtain and drop down sunshield, the Pit Boss truly reigns supreme on the wide open road. Lightweight, TriMatrix composite shell - DuPont™ Kevlar® / carbon / fiberglass blend. Three shell / three EPS sizes for a compact fit. SpeedDialFit™ innovative adjustable fit system. Internal sun shade offers "on the fly" protection from the sun. Microfiber liner. Removable neck curtain for cold weather riding.