1.NO WATER LEAK-Keeps the water out, which is all you want! The swimming goggles are completely sealed silicone protective circle design to prevent water from entering your goggles. 2.ANTI-FOG CRYSTAL CLEAR VISION -Each lens of the swimming goggles is carefully coated with advanced anti-fog so that can offer you a clear and long distant view under water swimming. 3.UV PROTECTION-The outer surfaces of the lenses are carefully coated which enables the lenses to protect your eyes from heat and damage of sun's harmful UVA and UVB rays especially when you swim outdoors. 4.NO LEAKING: The Swim Goggles have a unique, cushioned double seal design around your eyes and never allow water leak in. 5.Perfect for helping kids learn to swim as well as paddling around the pool or snorkeling at the beach.