The fashion plate above shows the quintessential habit from the Regency era (this example from 1816). They were frequently made in wools of a darker colour. While reds had been very stylish in the eighteenth century and still enjoyed popularity, navy blue because equally fashionable during the Regency. The habits had influences from masculine garments and military uniforms. Under the habit, you could see the delicate white cravat. New York Public Librarys picture collection.