What activities is it suitable for? Ski Snowboard Technology & Gadgets UV400 Guarantees maximum protection of the eyes from UV radiation. Anti-fog system Special lens coating that reduces fogging of ski goggles. Double lenses Absorbs the temperature difference between the face and the external environment, thus preventing the lens from sweating. Ventilation Adjustable ventilation ensures greater comfort during sports. NON-SLIP WAVES Anti-slip print. PORTABLE HARD CASE Hard case for safe storage.