Aptly named, the Smith Liberty MIPS Helmet is tough, lightweight, and features adjustable ventilation-a handy package that gives you the freedom to explore the entire mountain, on- or off-piste. It features a low-profile hybrid construction packed with impact-resistant foam and Smith's Koroyd filler, all of which help absorb the force from unfortunate spills, and this MIPS edition of the new Smith helmet features a Multi-directional Impact Protection System. MIPS uses a rotational liner that minimizes the force from angled impacts. And thanks to an abundance of adjustable ventilation, the entire mountain is yours to explore-open them up to cool off on traverse or bootpack, then snap them shut when you're back on the wind-whipped ski lift. A soft, fuzzy lining ensures next to skin comfort, but if you like riding with a beanie beneath, one spin of the fit dial will open up some room.