The tuxedo is the piece most men own once and then slightly dread wearing because they’re not entirely sure they’re doing it right. The rules around black tie are actually quite clear once you know them and that clarity is reassuring. Black dinner jacket with satin or grosgrain lapels. Matching trousers with a single stripe down the side seam. White formal shirt with a placket front or bib. Black bow tie that you’ve actually tied yourself rather than a clip on because anyone who cares about these things will notice. Black patent leather or highly polished plain shoes. The instinct to personalise with coloured bow ties or novelty cufflinks is almost always worth resisting because the tuxedo looks best when the conventions are observed rather than worked around. If you’re going to invest in one buy the best you can manage because you’ll wear it repeatedly over many years.