Specifications Hign-concerned Chemical:None Frame Color:MULTI Lenses Material:Polycarbonate Lenses Color:MULTI Gender:Men Frame Material:Acetate Lens Width:18cm Lens Height:9.5cm Lenses Optical Attribute:UV400 Protection, Mirror Coating Origin:Mainland China Item Type:EYEWEAR Sport Type:Skiing Sports:Skiing, snow, snowboard, skating Features:Magnetic glasses Ski goggles:Ski all day, 2s Quick-change Night skiing:Support FAQ: How to choose theSki goggles for different weather? (VLT%) The more sunlight, the less VLT you need to choose. VLT 13.5-38.2%, for Sunny days and partially clouded to sunny days. Normally it can fit with no issues. It has an adjustable anti-slip strap which is different from other products. Can I wear this goggles on top if I wear my glasses? Yes, ourSki goggles support Over The Glasses(), please check the glass size on pictures. Intended Use Due to the strong sunlight, reflected light from snow mountain and cold wind that stimulate the eyes, we suggest you choose a security professionalSki goggles. The lens is made from imported material and its mirrored coating is hardened, scratch-resistant and abrasion-proof. The goggles are 100% Anti-UV, play a key role in eyes protection Friendly Notice: Please tear protective film inside when using. There will be color differences in different angles of view because of Mirror Coating. Please do not use mascara or other oily substance in case lens gets dirty. Please air-dry the goggles after every snow sport e.g. skiing, snowboarding and etc. Please do not wipe the inner lens which will invalidate anti-fog function.