●High Quality Silicone●: Winsyne adult swim caps are made with sports-grade silicone, it features odorless, non-toxic and allergy-free to guarantee safety. It is super stretchy and tear-resistant, no deformation after repeated use, which makes the swim cap easy to put on without snagging hair. Note: Please avoid sharp objects, such fingernail and hairpin. ●One Size with High Elasticity●: The swimming caps is 9.4" in width, 7.7" in height and 8.1" in opening, more information please check the IMAGE about size. It is one size with good stretchy for men, women, boys, girls, adults, teens, even kids with short or medium hair. It would keeps your hair locks secure and tangle-free when you swimming in the pool! ●Protect Hair Healthy●: Our silicone swim cap keeps your hair within the swim cap to reduce your overall water resistance. While it deters water from entering, it cannot keep 100% of the water out. It not only protects hair from chlorine water damage to a great extent, we also extend the ear part of the swim hat for ear covering, it adds an layer of safeguard for your ears, let you enjoy swimming! ●User-Friendly Deign for Good Fit●: The swimming caps is designed in the shape of human skull, which not only makes a snug fit for most people, but also create a good streamline for swimming. It keeps you streamlined in the water for minimum drag and allows you better control in the water. And an anti-slip inner pattern prevents the swim cap from sliding during even the most intense sessions. ●Ear Plugs & Nose Clips Set●: A set of ear plugs and nose clip is included in package. Water entering the ear & nose can cause great discomfort, our ear plugs provide good coverage for ears and nose clip keeps a firm but comfortable hold for nose throughout swimming, they prevent water from entering the nose and ear canal in maximum way, have a comfortable swim experience.