Waterproof and anti-fog. It is waterproof and anti-fog, very suitable for swimming. Do not wipe the lens with a towel, otherwise it will damage the lens. Please put the goggles in a dry place, not damp, and have a longer service life. Very necessary and useful adult swimming and diving accessories. Adjustable swimming goggles, anti-fog and anti- children's waterproof silicone swimming goggles. Item Type: Swimming Goggles Seals and ropes: silicone Function: waterproof, anti-fog, anti- Suitable for: boys and girls Features: adjustable Width: 4.5cm Multi-color features: swimming accessories The package includes: 1 x swimming goggles (with earplugs) (others not included) Please note that due to the difference in lighting and computer monitors, we cannot that the actual color is the same as the picture. Due to different measurement methods, there may be an error of 1-2 cm. ★COMFORTABLE DESIGN: Swimming goggles are made with silicone frames that mould to the shape of faces, rubbing for ultimate wearing comfort and helps to reduce marking around eyes after swimming.