A fedora /fɪˈdɔːrə/ is a felt hat with a soft brim and indented...wikipedia - 19 Jul 2015
A fedora /fɪˈdɔːrə/ is a felt hat with a soft brim and indented crown. It is typically creased lengthwise down the crown and "pinched" near the front on both sides. Fedoras can also be creased with teardrop crowns, diamond crowns, center dents, and others, and the positioning of pinches can vary. The typical crown height is 4.5 inches (11 cm).