-Silicone -High-quality material: Made from premium silicone material, the swim cap is durable, comfortable, and stretchy. -Waterproof design: The swim cap is designed to keep your hair dry and prevent water from entering your ears, nose, and mouth. -Perfect fit: With a snug fit, the swim cap fits both adults, and can accommodate different head shapes and hair types. -Stylish and colorful: The swim cap comes in a variety of colors and designs, which are fashionable and eye-catching. -Easy to use and maintain: The swim cap is easy to put on and take off, and can be easily cleaned and stored after use.