Long winding descents and race-day lead-outs, the Smith Trace is all about versatility. Road, gravel or bikepacking, this bike helmet pairs complete Koroyd with MIPS for protection you can trust if the route gets hairy. And when the day heats up, you';ll stay cool thanks to internal air channels with intake and exhaust ports that keep the air flowing. Side channels let you securely stash your sunglasses when you don';t need them, and when you do, our AirEvac ventilation system prevents them from fogging up.Protection:Complete 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 protectionCPSC and CE EN 178 certifiedFit / Integration:Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenienceAirEvac ventilation system integrates with Smith eyewear for fog-free lensesVaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dialFeatures:18 fixed vents for consistent airflowXT2 antimicrobial lining offers sweat-activated odor controlLightweight, low-bulk single layer webbingLight mount compatibleWeight (Size M, MIPS): 1 oz / 28 gComplies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older