MSR Xpedition Dual Sport Helmet Aerodynamic shell design, constructed using advanced poly alloy plastic for lightweight and strength Compound-curved, scratch resistant and optically correct shield protects against UV rays Shield can be removed to alow open face riding or goggle use 9 points of ventilation air inlets exhaust ports, force cooling air through the shell's interior Hi-air velociy chin vent with dirt filtering synthetic and metal mesh DOT ECE approved Weighs approximately 3.35 lbs / 1.5 kg