Bowler hat

Hard, round-crowned hat with a narrow rolled brim

The bowler hat, also known as a Coke hat, billycock, bob hat, or derby (United States), is a hard felt hat with a rounded crown, originally created by the London hat-makers Thomas and William Bowler in 1849 and commissioned by Lock & Co. Hatters of St James's Street, London. It has traditionally been worn with semi-formal and informal attire.

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