Make sure you';re all in on race day when you buckle up in the Smith Ignite race helmet. Its aerodynamic shape, energy-absorbing Koroyd impact protection, and MIPS liner system give you the confidence and aero advantage you';ll need to attack with speed and catch the breakaway. Fully integrated eyewear storage allows you to pull on your shades fumble-free, so you never miss an opening.Protection:Zonal Koroyd coverage for lightweight, energy-absorbing and ventilated impact protectionMIPS Brain Protection System reduces rotational forces caused by angled impacts to the headIntegrated skeletal structure creates a roll cage for added strength and impact protectionComplies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and OlderFit / Integration:Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenienceAirEvac ventilation system integrates with Smith goggles and eyewear for fog-free lensesVaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dialFeatures:Eight fixed vents for consistent airflowXT2 antimicrobial lining offers sweat-activated odor controlLightweight, low-bulk single layer webbingWeight (Size M, MIPS): 11 oz / 31 g