Design & Technology: Cycling helmet designed to look great and fit smoothly MIPS(R) Brain Protection System reduces rotational forces caused by angled impacts to the head for added protection Zonal Koroyd(R) coverage offers lightweight and energy-absorbing impact protection VaporFit(TM) dial adjustment system offers 270deg fit adjustment with the turn of a dial AirEvac(TM) ventilation system integrates with Smith(R) eyewear for fog-free vision 8 fixed vents offer consistent airflow Ionic+(TM) antimicrobial lining offers sweat-activated odor control Fixed Microbrim Visor Fidlock(R) strap buckle provides easy, one-hand operation Lightweight, low-bulk single layer webbing Removable and rechargeable integrated rear light with red LED lights Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Style: DISPATCHMIPS