1.[THE SAFEST MATERIAL] swim goggles made from odorless and superior quality silicone, the goggles are latex and PVC . Our swim goggles are perfect for boy's and girl's swimming lessons and inspiring them to swim, suitable for children & youth, teen, toddler aged 4-16 years old. 2.[ANTI FOG & UV PROTECTION]Impact-resistant PC lenses, all of which anti-fog and UV protection, defend your ' delicate eyes from UV rays. child swim goggles have two lens designs, transparent lenses provide sharp and clear visibility for indoor swimming. Electroplating lenses protect & youth eyes from UVA/UVB exposure and reduce the sun glare when swimming outdoors. Different combinations of swimming goggles can meet your different needs. 3.[FUNCTIONAL DESIGN]One button designed, it is easy to open and wear. The fine elastic head strap could fit your 's head perfectly and its wider design distributes pressure more evenly for a comfortable wearing experience. The quick-fit buttons make the strap easy to be adjusted, your will always have a good fitting set of swim goggles, even as they grow. 4.[NO LEAKING & WATERPROFF]The swim goggles for are ergonomically designed to ensure that they are suitable for different facial shapes. The Double-Layer silicone gaskets seal your eye sockets snugly, to prevent leakage in water. The Impact-Resistant polycarbonate lenses provide better eye protection, which are also coated with anti-fogging treatment to let you have prolonged clear vision.