This high-performance helmet has a hybrid shell featuring a lightweight in-mold construction that fuses the exterior shell and EPS foam for a durable, one-piece design. Eight vents and AirEvac ventilation regulate your temperature with ease, so you can keep skiing or boarding all day long. This version also features Multi Directional 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 and/or CE EN 1077:2007 Class B alpine ski and snowboard helmet safety standards Micro-adjustable dial fit system for easy, on-the-go size adjustment Zonal KOROYD® coverage for lightweight, energy-absorbing and ventilated impact protection AirEvac ventilation drives warm air away from your goggles and out of the helmet through internal channels and vents MIPS Brain Protection System reduces rotational forces casued by angled impacts to the head Compatible with Aleck™ audio systems Removable Snapfit SL2 ear pads add warmth and are audio-chip compatible Beanie compatible Designed for ultimate integration with Smith goggles for maximum comfort and venting (sold separately) Removable goggle strap lock for streamlined shell when goggles are worn under helmet Magnetic chin strap buckle makes for easy one-hand operation Polycarbonate Imported