Why Should I Wear a Swimming Hat?
Swimming hats are worn for various reasons. Some pools require the wearing of swimming hats in order to protect the pool filters from becoming clogged with loose hairs which fall from the head of swimmers who are not wearing a swim cap, or to ensure long loose hair does not get caught in equipment.
Swimming hats are also sometimes worn in an attempt to keep hair relatively dry or to protect from chlorinated or salty water, to keep the sun off the hair, and also, when a cap is worn with ear plugs, in order to keep water out of the ears. Competitive swim caps also reduce drag in the water caused by loose hair. During longer swimming sessions, a swim cap keeps the wearer's head warm.