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; e.g., master sailor. History Officers Uniform regulations for officers were first issued by Lord Anson in 1748, and remained unchanged for nearly twenty years. Reportedly, the officers themselves advocated its adoption, as they "wished to be recognised as being in the service of the Crown." The "best uniform", consisting of an embroidered blue coat with white facings, worn unbuttoned with white breeches and stockings, was worn for ceremonial occasions; the "working rig" was a simpler, less embroidered uniform for day-to-day use. In 1767 the best uniform was abolished and replaced by the working rig, with a simpler "undress" uniform for day-to-day use. By 1795, as a result of the French Revolutionary Wars, a plain blue "undress" coat had been introduced for everyday use, and epaulettes were officially introduced. By 1846, all officers wore epaulettes. The white facings came and went over the years, briefly becoming scarlet (1830-1843). Though stripes of lace on the cuffs had been used to distinguish the different ranks of admiral since 1795, the first version of current rank insignia, consisting of stripes with a "curl" in the top one, was introduced for all officers in 1856. In 1825, the white breeches were replaced by trousers for officers serving in the United Kingdom, although the practice of wearing white trousers with naval uniforms (popularly known as “Wei-Wei Rig”) continued for officers serving overseas (e.g. in the West Indies and China) until 1939. Throughout