harmful rays and protect your eyes from heat and damage of the sunrays, especially when you swim outdoors.nbsp; Anti-fog Coated: The inner surfaces of the lenses are anti-fog coated by the latest Environmental Treatment Technology which enhances the anti-fog ability of the mirrored swimming goggles and does no any harm to your body.nbsp; Anti Leaking: silicone material and Ergonomic design used on the goggles ensure a snug fit on different facial forms and never allows water leak in, a good ideal gift for adults men women, kids, boys, girls, youth swim goggles. Super Comfortable And Shakeproof: Of course Flexible silicone frame and improved nose piece provide extreme comfort that never hurt your nose or leave a mark on your face. Polycarbonate lenses stay strong even in the toughest conditions.nbsp; Stylish Look: Absolutely good looking With the fashionable color, we strongly beve that the goggles will bring you to the high-fashion land and make you stand out of the crowd.nbsp;nbsp; Tips For Preventing Fogging: All of our goggles lenses are covered by an anti-fog coating. With proper maintenance, you can help it work longer. 1. Always remember to wet the lens inside so the coating can work. Put goggles in pool water for a while before swim. 2. NEVER wipe the lens. 3. After swim, wash the lens with fresh water and then let it air dry.nbsp; Item Name: Mirrored Swim Goggles; Main Material: Silicone, Polycarbonate(PC); Main Color: Blue; Mirror Width(Single): 55mm / 2.17, 30mm / 1.18; Nasal Bridge Breadth: 25mm / 0.98; Lens Barrel Length: 165mm / 6.50 Weight: 160g / 5.64oz; Package Include: 1 x Mirrored Swim Goggles.