The lightweight, aerodynamic shell offers fully ajustable vents, ported through the liner for dynamic flow-through ventilation to keep you cool. LS2 uses 3 shells for the smallest, lightest possiblein your size. The face shield is scratch and U.V resistant and can easily be changed without the need for tools. Includes pinlock anchor posts. The comfort padding is hypoallergenic and breathable and uses a neck roll design to seal well and keep wind noise to a minimum. LS2 uses laser cut, 3D foam for the ultimate in comfort and has no hotspots. A DOT approvedquick realse chinstrap provides a secure fit, Meet or exceeds DOT standards.