The bowler hat is a hard felt hat with a rounded crown created for Thomas Coke, 2nd Earl of Leicester of Holkham, in 1850. It was designed by the hatters James and George Lock of Mr. Lock of St. James's Street and was dubbed by them early on as the "iron hat".
The Locks sent their design to the hatmakers Thomas and William Bowler who produced the prototype of the hat for Coke. The "iron hat" later picked up the name Bowler because of its makers' family name, which has been used ever since. It was hard in order to protect the head from low tree branches for gamekeepers while they rode on horseback.
Peaking in popularity towards the end of the 19th century it offered a midway between the formality of the top hat, associated with the upper classes, and the casual nature of soft felt hats worn by the lower middle classes.
In the United States, this hat is also known as a Derby Hat. In Germany, the hat is known as Melone (melon), due to its shape. It is also worn by women in Bolivia.