● UNIQUE NO LEAKING :The gasket of the swimming goggles is made from environmentally friendly silicon. Its flexible frame let the skin around eyes more comfortable. Water never leak in. ● ADVANCED ANTI-FOG:The swimming goggles is coated with the advanced anti-fog protection and specially designed shatterproof lenses. Anti-fog protection gives you a clear and long-lasting vision in the water. ● UV 400 PROTECTION:The outer surfaces mirrored coating lenses with UVA/UVB protection which helps protect your eyes from UV rays and glare.(It will be a little dark when you use it) ● SUPER COMFORT: The silicone straps for swimming goggles are designed with high resilience belt that never hurt your nose or leave a mark on your face. ● WIDE VIEW & MYOPIA GOGGLES: This swimming goggles are mirror-coated with HD coating that reduces outside interference, maintain clarity of vision in the water. Suitable for people with myopia.If you have big difference between your 2 eyes like -2.0 and -6.0.You can buy 2 pairs and assemble them.