Its great elasticity could accommodate long and thick hair, gives a more generous fit, keeps it remain firm and adjusts well on your head without slipping off. The caps are much watertight and stable in the water, creating a good to prevent water seeping in, keep your hair dry. The cap won't tug or rip at your head and hair, very comfortable. Our swim cap is ideal for regular swimmers whether you swim competitively or for fitness swimming. It is also perfectly suitable for many other water sports, as well as bathing. your hair from getting wet and the damaging effects of chlorine. The swimming cap is made from high quality materials, very strong and quite durable, could last a fairly long time.