This swimming hat is made of , flexible and waterproof. Its elastic design of the swim caps can keep children ear from water and protect children's hair from bad chemicals in the pool. Easy to wear and remove, much practical and convenient. Features - Material: Silicone - Size( ): About 21.00X17.50X0.20cm/8.25X6.88X0.08inch; (Width): 20.00 cm/7.87 inch; (Hat Mouth): 17.30 cm/6.81 inch - Swimming caps can be easily expanded to fit your head and hair, but will not be deformed after using. - Made with silicone material, our swim hat protects hair and ears from , pool in the water. - The silicone makes it easier to wear and can hold long, thick hair without feeling tight and suffocated. - Mainly designed for kids, and easy to take on/off without snagging your hair. - Comfortable, head will be not tight, reduce head fatigue and also can effectively protect the scalp. Package list: 1 x Swim Hat