The Bicorne hat is an archaic form of headgear associated with the late 18th and early 19th centuries. Much worn by European and American military and naval officers, it is most associated with Napoléon Bonaparte.

Evolved from the tricorne, the black-coloured bicorne originally had a rather broad brim, with the front and the rear halves turned up and pinned together, forming a semi-circular shape; there was usually a cockade in the national colours at the front. Later the hat became more triangular in shape, its two ends became more pointed, and was worn with the cockade at the right side; this kind of bicorne eventually became known as the cocked hat.

Current usages

The Lord Chancellor of the United Kingdom wears a tricorne hat, but the other Lords Commissioners wear bicorne hats.

Members of the Académie française wear the habit vert (green habit) at the Académie's ceremonies. The habit includes a black jacket and bicorne hat, each embroidered in green.

Students at the École polytechnique wear a cocked bicorne as part of their Grand Uniforme (GU). Female students used to wear a tricorne hat but now also wear a bicorne.

See also

• Tricorne
• Cocked hat