Swim Cap, GOUP Water-drop Series Pro Silicone Swim Caps For Adults Waterproof Earmuffs Silicone Swim Cap For Men And Women with Ear Plugs High Quality: This swim cap adopt the premium quality 100% food grade flexible silicone for maximum stretch, eco-friendly, odourless, non-toxic, soft and lightweight. High Quality: This swim cap adopt the premium quality 100% food grade flexible silicone for maximum stretch, eco-friendly, odourless, non-toxic, soft and lightweight. Occiput Space Design: The shape of the swim cap has been carefully designed to ensure all hair lengths are kept dry and protected from contaminated water or chlorine. Convenience: Pro Swimming Caps are made from a silicone that can be stretched considerably, making it easy to put on your head. It will then return to its original shape, fitting your head comfortably and staying in place, leaving you free to focus on swimming. Practicability: Lightweight and Durable, convenient and perfect for all kind of people and different water sports at the beach or swimming pool, and even indoor hydrotherapy.