Elastic material: the non-slip swimming pool cap consists of silicone material, which has nice elasticity and will not deform after being stretched, fitting for most sizes of headsComfortable to Wear: Silicone material is very soft and comfortable.It suits for both short and long hair. 3D Ergonomic fit design the curve of the head, and the soft material makes it easy to put onWatertightness and Hair Protection: these silicone swimming caps can fit well with your head, not easy to fall or loose, and effectively block the water to keep your hair dry; What's more, they can stop the hair and ears from the water, dirt and otherbadsubstancesSuitable for: these long hair silicone swim caps can be accommodated by athletes, water enthusiasts, women, men, girls, boys and more, and fit for surfing, swimming, bathing, paddling, pool parties, or other involving water activitiesIngenious Gifts on Hot Summer Days: the bathing caps can serve as practical gifts for your sons, daughters, nieces, students or friends who enjoy swimming, expressing your support and care for their hobbies, helping them gain more fun from swimming