Ride the slopes with comfort, warmth and style in the all-new Smith Optics® Adult Mirage Snow Helmet! The AirEvac 2 Ventilation and adjustable dual fit system allow you to easily control changing temperatures and air flow for your desired level of comfort and warmth. Enjoy the lightweight feel of this unique helmet all season long with its in-mold construction. DESIGN & TECHNOLOGY: Perfect for protection when skiing or snowboarding Adult fit Lightweight in-molded construction maximizes weight reduction for comfort Features AEROCORE™ Construction featuring Koroyd® Features a cozy long-fleece liner for optimal comfort and warmth AirEvac 2 Ventilation minimize undesired cold drafts and maximizes air flow Adjustable dial fit system (DFS2) with 14 vents for quick adjustability to changing temperatures Includes Snapfit SL ear pads for convenience Compatible with Outdoor Tech™ audio systems Certification: ASTM F 2040, CE EN 1077:2077 Class B SIZING: We recommend you try helmets on before buying. Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your child’s forehead without hindering vision. Once you’ve got the right size, you can adjust the fit. S: 51-55 cm M: 55-59 cm L: 59-63 cm