This lightweight, minimalist snow helmet is the go-to choice for backcountry touring and ski mountaineering and is the brand's first triple-certified design that meets global alpine skiing and international mountaineering standards. Thirty-three vents on the shell create a ventilated environment and keep your eyewear fog-free, while Zonal KOROYD® coverage provides lightweight, impact protection. The Flexible Fit System, featuring BOA®, offers a micro-adjustable fit and collapses into the helmet so you can stuff it into your pack. External bungee loops securely attach this helmet to your pack when not in use, and the integrated headlamp strap routing keeps your light in place. This helmet also has a beanie- and ball cap-compatible design so you can layer up to match the weather conditions. This version features Multidirectional Impact Protection System, or MIPS, which uses slip-plane technology inside the helmet to reduce rotational forces that can occur in certain impact situations. Complies with ASTM F 2040, CE EN 1077: 2007 Class B, EN 12492 alpine ski and snowboard helmet safety standards 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 Flexible Fit System, featuring BOA® for a premium fit Designed for ultimate integration with Smith goggles for maximum comfort and venting AirEvac ventilation system integrates with Smith goggles for fog-free lenses Ionic+® antimicrobial lining offers sweat-activated odor control Integrated headlamp strap routing keeps gear in place Beanie and ball cap compatible Includes a lightweight, technical knit liner Polycarbonate Imported