Here’s a truism for you. The role of best man should extend well beyond organising a stag do and making a rip-roaring speech. The groom will no doubt expect you to take his big day very seriously – and that extends to the suit, shirt, tie, and finishing touches you wear to celebrate with him. Plus, with the watchful eyes of the wedding’s guests fixed on both of you all day, you’ve got every reason to be one of the ‘best’ dressed men in the room.
Of course, you should be led by the groom’s outfit, and while you ought to look sharp you also shouldn’t out-dress him. If he’s wearing a morning dress, find out what he’s gone for and choose a similar morning suit that won’t stand out next to his. If he’s wearing a three-piece suit, stick with a two-piece suit and let him steal the show – it’s his moment, after all.