This low-profile snow helmet features an ultralight shell construction and zonal Koroyd® coverage to better absorb impacts. AirEvac™ ventilation regulates your temperature with ease, so you can keep skiing or boarding all day long. This version 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. An antibacterial XT2® performance liner ensures that you are comfortable and warm. Complies with ASTM F 2040 and/or CE EN 1077 alpine ski and snowboard helmet safety standards Aerocore construction features Koroyd® technology that provides superior impact absorption, design flexibility and ventilation AirEvac technology for goggles integration Designed for excellent integration with Smith goggles for superior comfort and venting Compatible with Aleck™ audio systems AirEvac™ ventilation system integrates with Smith goggles for fog-free lenses Removable, machine-washable Snapfit SL2 Ear Pads Low-profile dual-regulator adjustable climate control VaporFit Snow™ dial adjustment system offers 27-degree fit adjustment with the turn of a dial T2® antimicrobial lining offers sweat-activated odor control Polystyrene/polycarbonate/ABS Imported