DESIGN & TECHNOLOGY: Ski and snowboard helmet Added Zonal Koroyd® energy absorption Advanced angled impact protection of MIPS® Hybrid shell designed for durability and no added weight Designed for ultimate integration with Smith goggles for optimal comfort and ventilation AirEvac™ ventilation system works with Smith goggles for fog-free lenses VaportFit Snow™ dial adjustment system gives 27-degree fit adjustment XT2® antimicrobial lining for sweat-activated odor control Regulator climate control gives easy, one-handed vent adjustment 2 vents Removable Snapfit SL2 earpads that add warmth and are audio-chip compatible Outfoor Tech™ audtio system compatible Weight (size M): 19 oz/550 g Styles: E006282TU5155, E006282SI5559, E006282VP5155