The porkpie hat is a type of hat that has a round, flat crown and a short, upturned brim. It is commonly made of wool or felt and is often associated with jazz, blues, and ska music.
The history of the porkpie hat can be traced back to the mid-19th century. It is believed to have originated in the United States and was first worn by both men and women. The name "porkpie" comes from its resemblance to the shape of a pork pie, a traditional British dish.