Feel protected as you conquer the slopes with the lightweight Smith Optics(R) Adult Camber MIPS Snow Helmet! This custom developed MIPS technology helmet delivers impact protection that's second to none, plus in-mold construction designed to maximize weight reduction for lightweight comfort. The AirEvac system keeps you ventilated while providing adjustable climate control, even with your gloves on! FEATURES: Perfect for skiing, snowboarding and other snow sports activities Intended for adult wear MIPS (multi-directional impact protection system) technology MIPS technology absorbs oblique forces through a slight rotation of the outer shell in relation to the liner Custom developed Smith Optics(R) MIPS technology helmet Low-profile design Ultralight in-mold construction creates a PC shell with an EPS liner to maximize weight reduction for lightweight comfort AirEvac 2 ventilation constantly moves warm, moist air away from the goggles through external vents, internal channels and the EPS liner Internal airflow adjusts with the regulator climate controller Regulator adjustable climate control with 20 vents allows quick modification to airflow and heat exhaust Climate control regulator adjusts with a gloved-hand Smith Optics(R) x BOA(R) fit system delivers an outstanding, secure closure with a customizable fit X-static performance lining SnapFit SL2 earpads Reinvented protection keeps you protected in low speed impact, high speed impact, rotational impact and multiple impact Compatible with Outdoor Tech(TM) audio systems Manufacturer's lifetime war SIZING: S: 51-55 cm M: 55-59 cm L: 59-63 cm XL: 63-67 cm