For small to medium-sized faces, the Oakley Ambush Goggles give you a balanced and comfortable fit with or without a helmet thanks to articulating O Matter strap clips. Oakley gave the Ambush a dual-vented lens as well as an F2 anti-fog coating to eliminate cloudy build up when youAAAre cutting turns in moist conditions. Triple-layer, moisture-wicking fleece foam keeps you comfortable until the lifts quit running. Product FeaturesFrame: O MatterLens: LexanStrap: ElasticHelmet Compatible: Yes Eyeglass Compatible: NoVentilation: Dual-vented lensFace Size: Small to mediumRecommended Use: Skiing, snowboardingManufacturer Warranty: LifetimeCountry of Origin: Bahamas