Joe Rocket Speedmaster Carbon Full Face Helmet Snell M2010 Rated Size Large Quadport 2.0 ventilation system: 2 massive front intakes channeled through to an aerodynamic rear venturi-effect exhaust spoiler, pulling heat & humidity up and out Adjustable Forehead & Chin bar intake vents Ultra Lightweight Full Application 4 x 4 Carbon Fiber Weave Shell Dual Density, Lightweight EPS impact absorbing liner