Gender: Mens/Unisex Helmet Category: Offroad Helmet Type: Offroad Helmets Color: Semi-Flat Hi-Viz Yellow (MC-3HSF) Size: Large Market Color: Semi-Flat Hi-Viz Yellow (MC-3HSF) Primary Color: Yellow Polycarbonate Composite Shell. ACS Advanced Channeling Ventilation System. Plush Nylex Interior. Large Eyeport. Standards: DOT-218. Construction: Injection formed Polycarbonate Composite. Weight: 2.9 lbs / 1335 grams (approx based on size medium).