Smith Optics Spherical Ski Goggles are the top choice for winter sports goggles! The vets at Smith Optics are snow goggle specialists, and the Smith Spherical Goggles come loaded with the best feature that they can offer. Smith Spherical Winter Sport Goggles feature dual-layer Driwix face foam to give the goggles a customized, comfortable fit. Goggles in the Smith Spherical Series each have a Carbonic-X outer lens. Each Smith goggle lens is individually molded and treated for optimum scratch and impact resistance, increased visual acuity and enhanced contrast sensitivity. The inner winter goggle lens is impregnated with Smith's Fog-X lens treatment for increased anti-fog performance. The Carbonic-X lens meets Class 1 optical standards as well as ANSI Z80.3 standards. The Smith Spherical Series features advanced anti-fog and airflow technology. Each Smith Spherical Snow Goggle offers the Vaporator thermal lens bonding technology. Many models of Smith Spherical Ski Goggle also offer the Regulator adjustable air flow vents in the goggle lens. There's no way around it - Smith Spherical Goggles are the very best in ski goggles!