The Sporti Antifog Positive Optical Goggles are designed for corrective vision while swimming and feature a fully treated positive diopters lens for farsightedness. Built with features that a typical goggle is equipped with, this opens up the market to those that need prescription lenses while they're swimming in the water. Features Available in diopters +2.0 through +6.0. Anti-fog coating. Note: Do not rub the inner side of the lens as it will damage the antifog coating. UV protection. Shatter-resistant, polycarbonate lenses. Soft silicone strap for ultimate comfort. Adjustable nose bridge. Details Fabric: Lens: 100% Polycarbonate; Straps/Gasket: 100% Silicone. Sun Protection: UV protection Adjustable: Straps & nose bridge Country of Origin: Imported