The L / XL Snowcross Lens (Clear) from Liquid Image is a large / extra large size replacement lens for the Summit Series HD Snow Goggle with HD Camera. Made of an optical Lexan material, the lens is durable, impact resistant and 100% UV protected. It also features an anti-fog treatment for improved visibility and an Iridium lens coating for accurate light transmission of 85 - 95%. The Snowcross Lens is just like the Snow Goggle Lens, except that it has a tab so that you can attach the standard tear-off sheet to it. The tear-off is used by snowboarders and others as a protective covering over the lens to shield it from dirt, debris and damage while on the slopes.