Designed for smaller swimmers, the Speedo Junior Silicone Swim Cap is easy and quick to put on and take off, and won't snag hair. This lightweight and durable cap is designed to hold its dome shape, eliminating wrinkles, to reduce drag. The silicone allows the head to breathe for a more comfortable fit, and can be stretched to over double its original size.Silicone material allows the head to breathe for comfort. Stretches to over double its original size. Quick and easy to put on and take off without snagging hair. Lightweight and durable. Holds its dome shape, eliminating wrinkles to reduce drag.