Features: ANTI-FOG - The inner surfaces of the lenses are anti-fog coated by the latest environmental treatment technology which enhances the anti-fog ability of the goggles and does no any harm to your body. UV PROTECTION - The outer surfaces of the lenses are carefully coated which enables the lenses to filter harmful rays and protect your eyes from heat and damage of the sun rays， especially when you swim outdoors. NO LEAKING - Big Frame premium silicone material and Ergonomic design used on the goggles ensure a snug fit on different facial form. COMFORTABLE - Flexible silicone frame and improved nose piece provide extreme comfort that never hurt your nose or leave a mark on your face. Goggles Maintainance: --Choose a neutral detergent to clean --Rinse your goggles in cold fresh water --Lay them out flat to dry in a cool place --Avoid scrubbing the inside of lens --Avoid soaking in water --Keep away from high temperature