ImportedAnti-fog: The inner surfaces of the lenses of the goggles are anti-fog coated by the latest Environmental Treatment Technology which enhances the anti-fog ability of goggles and does no harm to your faceNo Leaking: The goggles are ergonomic design of the high-quality silicone material and goggles ensure that the goggles are suitableComfort and Easy Adjust goggles with Ultra-Soft silicone double gaskets to ensure don't hurt your eyes and nose;the strap is easy to adjust between sizes and the quick release clasp on the side means you put on and off in secondsClear Vision: goggles are coated with a high-tech mirror to prevent harmful rays and protect your eyes from direct sunlight, which provide you wide vision. Advanced UV protection and anti-fog coating can enhance your swimming experience