What is a "souwester"?

A souwester, also known as a Southwester or rain hat, is a traditional style of waterproof hat that is commonly worn by sailors and fishermen. The hat is made from oilskin or waxed cotton, which makes it waterproof and features a wide brim that extends to the back to protect the neck and face from the rain. The sou'wester is typically yellow, but can also be found in other bright colors, and is secured under the chin with a chinstrap to keep it in place in windy conditions. It is a practical and functional piece of headgear that has been used for centuries by those who work at sea but is also worn by outdoor enthusiasts and those who need protection from the rain.