The Smith Trace is all about versatility with long winding descents and race-day lead-outs. Road, gravel, or bikepacking, this bike helmet pairs complete Koroyd with MIPS for the 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. FEATURES FEATURES: Complete Koroyd coverage for lightweight, energy-absorbing, and ventilated impact protection MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head The integrated skeletal structure creates a roll cage for added strength and impact protection CPSC and CE EN 1078 certified Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting, and storage convenience AirEvac ventilation system integrates with Smith eyewear for fog-free lenses VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial 18 fixed vents for consistent airflow Ionic+ antimicrobial lining offers sweat-activated odor control Lightweight, low-bulk single-layer webbing Approximate Weight: 280g Complies with U.S. CPSC Safety Standard for bicycle helmets for persons aged 5 and older.