The SINNER MARBLE OTG (Over The Glasses).Designed for people with medium to small faces, to be able to wear ski goggles over prescription eyewear comfortably without too much bulk.Equipped with a double, full orange, mirror lens category 3 with special anti-fog coating to stay fog free, while it blocks harmful UV rays.The soft, 3-layer face foam has small notches in the frame temples for wearing glasses underneath comfortably.Furthermore the foam is hypoallergenic and provides enhanced comfort.The MARBLE fits perfectly with your helmet, as it comes with an adjustable and anti-slip strap.