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A black tie wedding is one of the few occasions where the dress code is both genuinely strict and genuinely worth following. The stricter the code, the more clearly dressed the room — and the more the well-dressed stand out from the people who guessed.

A tuxedo is the most specific garment in men's fashion. The variables are narrower than in a business suit, the traditions are more clearly defined, and the consequence of getting it wrong is more visible — because everyone else in the room is wearing the same thing. This guide covers the meaningful decisions: lapel style, button configuration, fabric, and what each choice says about the man wearing it.

The wedding suit for women is not new. The history of brides in tailored clothing runs through the 20th century in parallel with the history of the white gown — in quieter photographs, in smaller ceremonies, in the weddings of women who had decided that a gown was not what they wanted to be married in. What is new is that the wedding suit has become mainstream — a recognized and celebrated option rather than an unconventional one.

Black tie is the most misunderstood dress code in men's and women's fashion. It appears on invitations to galas, charity events, film premieres, and weddings, yet most people arrive either underdressed, overdressed, or wearing something they'll regret in the photographs.