The peaked lapel (American English), double breasted style lapel or pointed lapel (British English), is the most formal, featuring on double-breasted jackets, all formal coats such as a tailcoat or morning coat, and also commonly with a dinner jacket (both single and double breasted). In the late 1920s and 1930s, the single breasted peaked lapel jacket was considered a very stylish design. The feature was carried into day clothing by the increasing popularity of the peaked dinner jacket.
