Fedora is a type of HAT that is typically made from felt and has a wide brim. It is often associated with formal or semi-formal attire, and is sometimes referred to as a trilby or a FEDORA HAT. The term 'FEDORA' is derived from the title of an 1882 play by Victorien Sardou, which featured a character named FEDORA Romanoff. The HAT became popular in the early 20th century, and has since become a staple of men's fashion.