page_title: Uniforms of the Royal Navy
section_title: No. 1 dress
hierarchical_section_title: Uniforms of the Royal Navy / Present-day uniforms / Officers / No. 1 dress
caption_attribution_description: English: Admiral Sir Philip Jones, First Sea Lord
context_page_description: The uniforms of the Royal Navy have evolved gradually since the first uniform regulations for officers were issued in 1748. The predominant colours of Royal Navy uniforms are navy blue and white. Since reforms in 1997 male and female ratings have worn the same ceremonial uniform.
  RN uniforms have served as the template for many maritime uniforms throughout the world, especially in the British Empire and Commonwealth. The uniforms of the Royal Naval Reserve, Royal Fleet Auxiliary, the Maritime Volunteer Service, the Sea Cadet Corps, the Navy branch of the Combined Cadet Force and the Volunteer Cadet Corps as well as modern uniforms of Trinity House, the Royal Australian Navy, the Royal New Zealand Navy and Royal Malaysian Navy are virtually identical to RN uniforms, with the exception of flashes at shoulder height and on rank slides. Royal Canadian Navy uniforms are also very similar, though the traditional sailor suit is no longer used and some distinctly Canadian rank insignia and titles are used; i.e., master seaman.
context_section_description: This is the formal uniform worn on ceremonial occasions. For all commissioned officers it consists of a double-breasted, navy blue reefer jacket with four rows of two buttons, matching trousers, white shirt, black tie, peaked cap, black socks, and black leather shoes. It is divided into 1A (with medals and bearing arms), 1B (same as 1A, but without arms), and 1C (with medal ribbons). Female personnel may wear skirts except when carrying a sword or rifle. It was originally introduced in 1889 and was initially known as the 'undress coat'.
caption: Blue No. 1C dress (with aiguilette) worn by Sir Philip Jones
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