The long coat is described as a frock coat, and is particular to the Household Cavalry, which is formed of two regiments - The Life Guards and The Blues and Royals - while another version with slightly different cuffs is also worn by the Foot Guards. (The style of the knee-length frock coat evolved from men's 19thc fashion, with additional inspiration from the Ottomans.) It was worn in "Undress" instead of Full Dress, most likely because the choice of Windsor Castle made the wedding a less formal affair. One thing that fascinated us the most was the dashing dark uniform that Prince Harry chose to wear to his wedding. The uniforms were created by traditional military tailors Dege & Skinner on Savile Row, and were said to have taken over 100 hours to stitch and tailor by hand. Details are everything, even in a seemingly monochrome coat: the intricate interwoven braid on the sleeves (which was barely visible on television) took a single skilled craftsman over a we...