Product Description: 1.【100% Silicone】: Compared with Latex and Rubber, SILICONE provides food grade safety for swimmers, it's not only ODOR-FREE, NON-TOXIC, but also FRIENDLY to the SKIN and COMFORTABLE to wear. Mostly, equipped with super flexible elasticity, it won't get loose even after plenty of uses, extremely extended the service life. 2.【Waterproof &Nose Ear Protection】: No matter short hairs or long hairs will all be tightly wrapped in the swim cap to avoid getting wet when swimming. We also nose clip and earplugs, they can effectively protect your nasal cavity and ear canal against water, you don't have to buy them separately. 3.【Professional for Swimming】: EAR POCKET DESIGN to provide double protection for ears against the water. THICKER EDGE DESIGN to ensure it keep in place steadily. INNER EXTENDED ROOM DESIGN to make users enjoy swimming without overpressure. LIGHT WEIGHT DESIGN to helps users reduce the water resistance and speed up. 4.【One Size Fits All】: Based on 3D ERGONOMIC EAR STRUCTURE, our swimming cap fits both male and female to use. Users can easily put it on and won't snag your hairs or get hairs in a mess when put it off, ideal for swimming, hot spring, beach sunbathing, home bathing, winter swimming etc.