Bell Stellar Adult RS-1 Sports Bike Motorcycle Helmet - Red/Black / Medium Super lightweight Kevlar/fiberglass Composite Shell Velocity Flow Ventilation system with FlowAdjust for maximum ventilation and temperature control Super stable aerodynamic signature resists buffeting and lift Removable and washable, antibacterial/antimicrobial interior comfort liner, Contour Cut Cheekpads for superior fit and comfort Five-year warranty