Adult's swimming hat, which is made of PU materials, durable and safe to use, besides, it is waterproof, comfortable to wear. Easy to wear and easy to take off, let your enjoy the swimming experience. It can not only reduce head fatigue, but also effectively protect the hair. Features -Material: PU. -Size: About20.00X12.00X1.00cm/7.86X4.72X0.39in. - Lightweight material, good flexibility, reduce the head's fatigue, can also protect hair effectively. -Easy to put on and take off, allowing your to enjoy swimming experience. -Lightweight, provides durable performance and optimum fit, tasteless, friendly to the skin. -Swim faster and have more fun in the pool with less resistance, enjoy swimming experience. -Swim hat can be applied to regular swimming or some swimming activities, such as synchronized swimming, etc.