Sou'wester/sau-'wester n (1837):a waterproof hat with a wide slanting brim longer in back than in front.The black Sou'wester was developed in the 1800's. Originally coated with linseed oil and lampblack, the design provided superior protection against foul weather when fishing the North Atlantic. In fact, it is still preferred by many fishermen today. The turned up front and long back keep water away from the face and neck without hindering visibility. Now made with a more modern coating, the Sou'wester still gives the same traditional look, flexibility and rugged comfort demanded by those who challenge the elements.