Shoei Qwest Passage Motorcycle Helmet - TC-5, X-Large Standards: Snell-M2010, DOT, Construction: AIM+ (Advanced Integrated Matrix Plus Multi Fiber), Weight: 3.644 lbs / 1,653 grams (approx, for Size Medium Solid Color) Upper Air Intake Vent is positioned to maximize air volume into the helmet interior, Large upper intake vent positioned to maximize performance in high wind conditions Easy to operate large lower intake vent, Lower air intake/defroster vent reduces shield fogging and increases ventilation, The rear/neck outlets allow for effective air exhaust Dual Layer EPS liner enhances impact absorption and ventilation, 3-D center pad and multi-layered polyurethane foam cheek pads, Cheek pads are replaceable or removable for maintenance, Eyeglass compatible interior Breath guard and chin curtain included