1. Complete ear safety: With ear protection that prevents water from flowing into the ears, this silicone swimming cap reduces discomfort and risks when swimming. The extralarge design can accommodate long hair and provides comprehensive hair care, making your swimming training stress and enjoyable. 2. Thermal comfort and fit: Equipped with a concave adsorption structure, this silicone swim cap insulates against water temperature, ensures a comfortable head temperature, while the unique convex design guarantees a snug fit. 3. Flexible sturdy: Made of quality silicone material, this swim cap offers elasticity and durability for longlasting performance, providing a comfortable and secure fit that won't slip or tangle your hair. 4. Ergonomic design: Featuring soft embossed edges on the brim, our silicone swim cap ensures an enhanced and comfortable wearing experience while minimizing skin pressure and irritation.