Technology: Zonal Koroyd(R) coverage for lightweight, energy-absorbing and ventilated impact protection MiPS -Equipped with the Multi-Directional Impact Protection System, you not only stay cool but stay safe with extra protection and durability Design: Designed for ultimate integration with Smith performance eyewear and goggles for maximum comfort, venting and storage convenience AirEvac(TM) ventilation system integrates with Smith eyewear for fog-free lenses FEATURES: 15 fixed vents for consistent airflow Optional fabric visor Ionic+(R) antimicrobial lining offers sweat-activated odor control Lightweight, low-bulk single layer webbing Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older