Bell Emblem Adult RS-1 Street Racing Motorcycle Helmet - Hi-Viz Yellow / 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