Mushroom hat

A mushroom hat (also sometimes referred to as a mushroom brim hat or dish hat) is a millinery style in which the brim of the hat tilts downwards, resembling the shape of a mushroom (or dish). It is a style that first emerged in the 1870s and 1880s, when it was usually made of straw. It became fashionable again from around 1907 to the late 1920s; these versions featured a distinctly downturned brim although the size and shape of the crown varied according to prevailing fashions.