A hat type is a type of headwear that is worn for protection from the elements, fashion, or religious reasons. The most common hat types are the BOATER (6 letters), BOWLER (6 letters), DERBY (5 letters), STRAW (5 letters), and FEDORA (6 letters). The BOATER is a stiff, flat-topped hat made of STRAW or felt with a brim that is usually turned up at the sides. The BOWLER is a hard felt hat with a rounded crown and a narrow brim. The DERBY is a felt hat with a curved brim and a round crown. The STRAW hat is a lightweight hat made of woven STRAW and is often used for summer wear. The FEDORA is a soft felt hat with a wide brim and a creased crown.