A boater is a kind of hat associated with sailing and boating.
It is normally made of straw and has a flat crown and brim, typically with a ribbon around the crown, which is often in colours representing a school, rowing crew or similar institution. Boaters were popular as summer headgear in the late 19th century and early 20th century, and were supposedly worn by FBI agents as a sort of unofficial uniform in the pre-war years. Nowadays they are rarely seen except at sailing or rowing events, period theatrical musical performances or as part of old-fashioned school uniform.
These hats have been carefully designed and manufactured so that there is no compromise in the materials, the workmanship, the fit, or the styling.
Chapter of Hats (Planchè), Hats are now worn, upon an average, six inches and three-fifths broad in the brim and cocked between Quaker and Kevenhuller.
A low-crowned broad-brimmed hat worn, esp. for travelling, in ancient Greece; (Classical Mythol.) a hat of this sort which the god Hermes (or Mercury) is frequently represented as wearing.