Prescription Swim Goggles - AntiFog - Brand:SeeWorthy High Quality Optical Prescription Lenses Polycarbonate Lenses are Coated for Ultra-violet (uv) Protection Silicone Strap Makes for a Secure Comfortable Fit, Silicone Seals Keep the Water Out Anti-Fog Coating Reduces Fogging that Prevents Clear Vision Diopters -2.0, -2.5, -3.0, -3.5, -4.0, -4.5, -5.0, -5.5, -6.0, -7.0, -8.0.