ãANTI FOGã: 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.ãUV PROTECTIONã: 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.ãNO LEAKINGã: Premium silicone material and Ergonomic design used on the goggles ensure a snug fit on different facial forms and never allows water leak in.ãSUPER COMFORTABLEã: Flexible silicone frame and improved nose piece provide extreme comfort that never hurt your nose or leave a mark on your face.