Protection Hybrid shell construction blends a durable exterior with a lightweight in-molded shell for durability where you need it most while keeping the helmet light Zonal Koroyd® coverage for lightweight, energy-absorbing and ventilated impact protection Mips® Brain Protection System reduces rotational forces caused by angled impacts to the head Select colorways offered without MIPS® system Certification: ASTM F 2040, CE EN 1077:2007 CLASS B Fit / Integration Designed for ultimate integration with Smith goggles for maximum comfort and venting AirEvac ventilation system integrates with Smith goggles for fog-free lenses VaporFit Snow™ dial adjustment system offers 270-degree fit adjustment with the turn of a dial Smith Liberty Mips Helmet Womens