High QualityThe children's swimming cap is made of environmentally friendly and odorless silicone material, 100% non-toxic and formaldehyde-free; super soft silicone gasket, double sealing design, waterproof and leak-proof, comfortable to wear. Waterproof and Non-slipOur kids swimming caps are designed with waterproof and non-slip, not only can keep your kids hair dry and prevent it from floating in the pool, but also protect your kids hair and ears from some unknown items, It won't slide around and is perfect for bath time, pools, open water, and more. Suitable for KidsSpecially designed for most kids (boys/girls) with short or long hair, non-allergic and lightweight. Good ElasticityKids swimming caps have good elasticity and extensibility, suitable for most boys and girls. The high elastic silicone cap perfectly fits the curve of the head without pulling the hair, providing comfort and good protection.