It's easy to forget that William's attire was an actual uniform, not just a fancy costume. He wore an Irish Guards Mounted Officer's uniform, fitted by Kashket and Partners, and the blue sash against bold red; it was a winning camera-friendly combination.
Every part of his outfit had some significance - much of it technical - which goes a long way towards elevating his wedding day look beyond your garden variety rental tux.
Not upstaging his brother, but looking every bit as official, Prince Harry sported the Blues and Royals officer's uniform in Dismounted Review Order, with a Forage Cap. His best man ensemble was accessorized with a gold waist belt boasting sword slings, sans sword. Time will tell whether this catches on among men looking to make an edgy statement.
And His Royal Highness The Prince of Wales wore the Royal Navy Number One Dress (Ceremonial). He was adorned in medals and badges and braiding galore including the Canadian Forces Decoration medal which he was awarded in 1991 for his special relationships with Canadian regiments.
As for the celebrity guests, music man Elton John added some characteristic flair to his traditional Richard James-designed morning suit with a butter cream-coloured waistcoat and electric pink tie. Canadian David Furnish stuck to predictable shades of grey from Savile Row tailor Henry Poole.
Soccer star David Beckham, meanwhile, cleaned up quite nicely in his Ralph Lauren morning dress. But he seemed to prefer holding his top hat, over actually wearing it.