This is worn only by a few senior Officers (Admirals and Admirals of the Fleet, members of the Royal Family or Royal Household of Flag Rank, and the Vice-Admiral of the United Kingdom). In addition, in the past several members of the Royal Family below flag rank; most notably Charles, Prince of Wales and Andrew, Duke of York wore this uniform whilst holding the ranks of commander and captain. It consists of a navy blue double-breasted tailcoat with standing collar faced white with gold edging, worn with gold shoulder boards, and gold laced blue trousers. Officers of the rank of Admiral of the Fleet, and also officers holding the appointments of First Sea Lord, Chief of the Defence Staff, Commander in Chief Fleet, Second Sea Lord or the Defence Services Secretary (if a naval officer) wear a full dress sword belt embroidered with oak leaves; others wear a full dress sword belt with three stripes. It is worn at parades such as Lord High Admiral's Divisions (BRNC) or at state occasions. Introduced in 1960, it is essentially the same Full Dress uniform worn for ceremonial occasions before that date only with the cocked hat replaced by the peaked hat and the epaulettes replaced by shoulder boards, and without the cuff slash and gold lace on the rear pockets. The ceremonial day coats worn by women button up the opposite way, and the tricorn hat is worn instead of the peaked cap (as worn by the Princess Royal).