Gonex OTG Ski Goggles, Snow Goggles for Men Women Youth Anti-Fog UV Protection with Goggle Box **VLT: 21%, suitable for sunny condition**PC Outer lens: 100% UV400 protection, spherical lenses can give you a wider and clear visual experience Anti-fog Inner lens: Excellent optical clarity and vented dual lens with anti-fog treatment TPU frame: flexible urethane frame construction OTG: big inner space for myopic glasses and helmet compatibility Triple-layer Foam: Designed to reduce fogging and optimizes the flowing air over the inside of the lens. These venting ports can control airflow well, while preventing clogging from snow and ice