There are lots of reasons why it’s a good idea to wear specially designed hat for when you go swimming. The most obvious is for hygiene reasons. A swimming cap helps to protect the hair, scalp, and ears from pool water & keeps the pool clean. A lot of pools do require a swim hat to be worn whilst swimming, especially in Europe. (bear that in mind when packing for your next holiday.) It is easier to swim when hair is covered and out of the way If your hair is coloured, braided or you have extensions then it is recommended to wear a swimming cap. The swimming cap will protect your hair from the harmful effects of chlorine if you are swimming in chlorinated water.If you are swimming outside, then a swim cap will protect your hair from the sun and elements Swimming hats are great if you swim if you swim in the sea or go wild swimming. A swimming hat will help to stop the heat escaping from your head therefore helping to keep you warm. Also a brightly coloured swim hat will enhance your visibility whilst swimming outdoors A swim cap will keep earplugs in, if worn.