1Professional Ventilation: Designed to reduce fog and optimize the flow of air inside the lens, ski goggles provide a fluent air flow system, which can quickly and effectively drain water. 2Double Lenses: Comprehensive and real lens coated reflective lenses, UV protection, excellent optical clear spherical lenses and frameless design create an ultra wide high definition view, which is more durable than other ski goggles. 3Anti Fog: The Italian inner lens is made of professional durable anti fog performance materials, with a breathable system, which can prevent fog when skiing or snowboarding, and can prevent scratching, fog and impact. 4Oversized OTG Design: OTG (above glasses) design, ski glasses can let you wear glasses under goggles, are also suitable for people wearing glasses. They are very suitable for skiing, snowboarding, skating, rock climbing, motorcycle, mountain biking, air driving, spring jumping, etc. 5Helmet Compatible and Adjustable Belt: Silicone back anti slip, widened high density 3D racking pattern super long rubber belt, premium TPU frame, 3 layers of foam, comfortable, warm and safe.