Lightweight in-mold construction fuses the exterior shell and EPS foam to create a minimalist helmet ideal for hitting the slopes in comfort and style. A self-adjusting lifestyle fit system and AirEvac™ ventilation add comfort and utility, and the style complies with ASTM F 2040, CE EN 1077:2007 CLASS B alpine ski and snowboard helmet safety standards. This version features a 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 alpine ski and snowboard helmet safety standards Round Contour Fit to better match rounder head shapes Compatible with Aleck™ audio systems (not included) AirEvac ventilation drives warm air away from your goggles and out of the helmet through internal channels and nine vents Removable goggle strap lock for streamlined shell when goggles are worn under helmet Removable Snapfit SL2 ear pads add warmth and are audio-chip compatible ABS plastic/nylon Imported