Quality swimming cap: Made from high-quality 100% silicone material. It has the great advantage of being stretchy with anti-tear material, no deformation after repeated use. The swimming cap can be easily stretched for an optimal fit. Skin-friendly, makes you safer and softer. Size: Height: 7.25 inches, length: 8 inches, maximum length: 11.5 inches Streamline swimming cap: Swimming cap is snug fit for optimal performance, the contoured shape reduces drag for excellent hydrodynamic performance. This swimming cap has a durable and elastic surface that provides a comfortable feel. Anti-slip design and easy to put on and take off. Professional quality material for every swimming enthusiast. Non-slip & waterproof: Silicone water drop swimming cap with non-slip design, you don't have to worry about the swimming cap during your swim. Swimming cap perfect for preventing water from entering your ears and head. All you have to do is enjoy your swim. Unisex for all adults: The swimming cap is highly elastic, so whether you have long hair, thick hair or different head shapes, this swimming cap can be easily stretched for an optimal fit and is flexible to fit any head size. Ergonomic design: Ergonomic 3D shaping ensures a perfect fit, while the material is designed not to stick or pull on hair. The swimming cap can protect your ears from excess pressure and keep your ears comfortable. Advanced thicker curved edges are designed for a better fit and keep the cap in place during long swims. The swimming cap is made of high-quality silicone material that is very stable and durable, softer and lighter on the head to reduce swimming resistance. The silicone cap has good water resistance and can form a good seal to prevent water from entering and keep hair dry. It can prevent most water from entering your ears, minimise ear pressure and prevent water from entering. The swimming cap is easy to put on and take off and can fit snugly without pulling on your hair, which is very comfortable. Its tremendous elasticity can hold long and thick hair, stay in place and fit your head well without slipping.