Mess dress uniform is the most formal type of evening-wear uniform used by military personnel, police personnel, and other uniformed services members. It frequently consists of a mess jacket, trousers, white dress shirt and a black bow tie, along with orders and medals insignia. Design may depend on regiment or service branch, e.g. army, navy, air force, marines, etc. In modern Western dress codes, mess dress uniform is the supplementary alternative equivalent to the civilian black tie for evening wear. Mess dress uniforms are typically less formal than full dress uniform, but more formal than service dress uniform.
Three Canadian officers in shawl or rolled collar jacket and waistcoat style mess dress or mess kit. Miniature medals and other accoutrements are also worn.
A retired colonel of the Australian Army in winter mess dress, 2013.
Mess dress uniform for The Black Watch (Royal Highland Regiment) of Canada on display
Lieutenant General Pierre St-Amand of the Royal Canadian Air Force in winter mess dress, 2016.
A uniform is a variety of costume worn by members of an organization while usually participating in that organization's activity. Modern uniforms are most often worn by armed forces and paramilitary organizations such as police, emergency services, security guards, in some workplaces and schools, and by inmates in prisons. In some countries, some other officials also wear uniforms in their duties; such is the case of the Commissioned Corps of the United States Public Health Service or the French prefects. For some organizations, such as police, it may be illegal for non-members to wear the uniform.
A variety of uniforms used in the Canadian Militia, 1898.
Uniformed newspaper vendors in Mexico City. Employers in some workplaces require their employees to wear a uniform.
An airline pilot in uniform.
A Russian honor guard wearing their full dress uniforms. Full dress is a formal uniform typically worn in ceremonies.