SUNVP Ski/Snow Cycling Goggles Winter Outdoor Sports Snowboard Goggles- Fog Resistant (Yellow, Rainbow) with Extra Long Adjustable Strap Goggles frame has ventilation system, an increase in operation with a home air circulation and comfort. High quality lightweight hard and veneer for anyone face-shaped design suitable with the use of night vision goggles. PC aerospace materials (PC was first used for military protection, and later with the improvement of technology for the manufacture of optical lenses, the advantage of strong anti-impact, safe and reliable, the thickness of the PC 0.5 centimeters to stop within 50 meters, for sports glasses, can properly protect the user's eyes.) Headband: advanced design to meet the various helmets, sights, binoculars, night vision systems. Anti-impact lens, beyond the American National Standards Institute ANSI Z87.1 standards for impact resistance level. PC lenses imported fiber ( polycarbonate) strengthening the lens. 100% UVA / UVB protection, and protective outer layer anti-fog and scratch resistant, can withstand dust or liquid splash