The Oakley Mod5 MIPS Helmet over delivers on comfort and protection. The rugged Duramatter shell protects against dents and dings on tight tree runs while the MIPS tech absorbs rotational forces on off-center impacts. The adjustable vents up top close off on arctic mid-winter runs and open wide on balmy spring laps for season-long comfort. Plus the Polartec Power Grid liner and ear pads wick away moisture when we're charging hard and come out for an even breezier fit on bootpacks.