● 82% Nylon+18% Spandex. Lightweight, provides durable performance and optimum fit.. ● The swim cap protects your ears and hair against getting the water. Comfortable suiting each head type. ● Easy on-and-off design won't snag hair,Allows long hair to be tucked inside without compromising ● Specifically designed for swimmers with long hair,make you enjoy every swimming time. ● If you are unsatisfied with this swimming cap for any reason, please feel free to contact us.