Injection-molded polycarbonate shell, Aerodynamic shell design creates a quiet and stable ride, Fully removable moisture-wicking liner and cheek pads, Micrometric chin strap buckle, Closable chin, top vents and rear exhaust vents for temperature regulation, Intermediate-oval helmet fit, Built-in speaker pockets for communication systems, Optically Correct Visor offers distortion-free clarity and UV protection, Pinlock® prepared shield (Pinlock® insert sold separately)