1.Kids goggles are designed with builtin lenses, which provide children with clear and panoramic vision, so that their eyes can embrace the wonderful underwater world (suitable for indoor and outdoor swimming), give children a full sense of security, make swimming more interesting and parents more relaxed, with builtin earplugs to give your child a wonderful swimming experience. 2.These glasses have a single lens design, suitable for children aged 316 years and do not cause too much pressure on the child's eyes. The wide silicone seal not only provides a strong waterproof seal to ensure no leakage. The swimming goggles feature highquality PC lenses that are easily adjustable to keep your child's eye area dry and prevent hair from getting stuck, providing longterm comfort. 3.The large frame glasses feature a moderate seal that conforms to your face for less feeling while creating a strong seal around the eyes. You don't have to worry about water seeping in while swimming, allowing your child to see 180 degrees; wide, durable silicone frame provides , comfort and popularity. 4.The inner surface of the children's glasses uses advanced antifog technology to quickly distribute water mist and prevent condensation, giving your child a clearer visual experience. The outer layer has an antiUV coating to protect your child's eyes from harmful UV rays and bright light. Warm reminder: To protect the antifog layer, please do not wipe the inner surface of the mirror directly with your fingers or other objects.