1100% Waterproof Thanks to its hypoallergenic silicone seals, it is particularly comfortable when wearing and sits nicely on the head, the fit promises optimal wearing comfort and ensures a waterproof swimming experience, ensuring the eye area reliably dry.2Anti-fogThe inner surfaces of the lenses are coated with the latest environmental treatment technology anti-fog so that you can provide a clear and long distance vision under water.3Wide view designThe swimming goggles are design with wide polarized lenses, so you could have undistorted peripheral vision, as well as a safer swimming experience.4UV protection The outer surfaces of the lenses are carefully coated so that the lenses filter harmful rays and protect your eyes from heat and damage to the sun protection, especially when swimming outdoors.5Ergonomically design Swimming goggles are made with premium silicone material and ergonomic design used on the goggles, ensure a comfortable fit to overwhelming majority of face shapes and never let water leak. The double headband is extremely stretchy and also provides a snug fit and support.