Professional Ventilation-Designed to reduce fogging and optimizes the flowing air over the inside of the lens.ski goggles provide smooth air-flow system which brings fresh air and exhaust moisture quickly and effectively. Performance Double Lens-Anti-scratch,anti-fog,impact resistance,full face real revo mirror coating reflective lens,100% UV protection,more solid & durable than others ski goggles.The inner lens made by Italy with PRO long-lasting anti fog performance materials,working with ventilation system.NO fogging up when skiing or snowboarding.Great optical clarity spherical lens and frameless design create a super wide HD vision. Oversized OTG (above the glasses) design-With the OTG (above the glasses) design, the Skiing glasses allow you to wear the glasses under the goggles, and the goggles are also suitable for those who wear glasses. It is perfect for skiing, skiing, snowboarding, ice skating, rock climbing, motorcycling/mountain riding, aerial driving, bungee jumping and more. Helmet Compatible & Adjust Strap-Silicone-backed non-slip , widening high density 3D jacquard extra long strap . Great Materials - Comfortable , warm , safe & breathable materials . Premium TPU frame , triple-layer foam . This ski snowboarding snow goggles fit Kids (Boys & Girls) over 10 years old.