Protection 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 Integrated skeletal structure creates a roll cage for added strength and impact protection CPSC and CE EN 1078 certified Fit / Integration 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 Features 18 fixed vents for consistent airflow Ionic+® antimicrobial lining offers sweat-activated odor control Lightweight, low-bulk single layer webbing Weight (Size M, MIPS®): 10 oz / 280 g