TheAltus ski helmet from Smith is a lightweight, robust model that offers optimum protection in the event of a fall. It features In-Mold construction with Koroyd technology to absorb impact with great efficiency. The VaporFit Snow adjustment system is quick and precise to use, the Iconic lining is anti-microbial and the AirEvac ventilation system prevents the mask from fogging up. The earpieces are removable, ideal for mild-weather ski days, and this model is compatible with the Alleck audio system for musical rides. Features: In-Mold construction: polycarbonate shell + EPS foam Koroyd technology: superior impact protection VaporFit Snow adjustment system Iconic antimicrobial lining Removable earcups AirEvac ventilation system: prevent fogging 10 ventilation holes Compatible with Alleck audio system Transport bag included Certification: ASTM F 240, CE EN 1077:2007, Class B Weight: 450 g This description is an automatic translation. Please contact us if you have any further questions. Helmet Smith ---Altus Matte Slate Black