Fast-paced lunch ride or weekend 60-miler, the Smith Persist road helmet is down for whatever youve got in mind. Designed to feel like its tailor-made for your head, you can fine tune the fit on the fly with an easy to use dial adjuster. When youre sweating it out on the climb, 21 fixed vents and our AirEvac ventilation system keep the air flowing, your head cool and your glasses from fogging. Energy absorbing zonal Koroyd complements the MIPS Protection System to reduce impact forces in the event of a crash and for the confidence to tuck every descent. - Down for Whatever Ride You Have in Mind: Whether youre feeling a fast-paced lunch ride or weekend 60-miler, the Smith Persist road helmet is ready + designed to feel like its tailor-made for your head - Your Protection at its Core: Our Signal helmet features the MIPS Safety Protection System, Zonal Koroyd Coverage for lightweight, energy-absorbing & ventilated protection. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older as well as CE EN 1078 and AS/NZS 2063 - Stay Cool & Eliminate Foggy Lenses: With 21 fixed vents for consistent airflow and the AirEvac system to integrate with Smith eyewear, youll stay cool and your glasses will stay clear - Adjustable for a Comfortable Fit: Features an adjustable dial on the back that lets you fine-tune the fit for comfort - Born on the Mountain, Built from Innovation: Smith is a performance eyewear and helmet brand for those inspired to pursue new and deeper connections with the outdoors; weve been outfitting consumers with the confidence to experience more since 1965