A black-tie wedding is a formal event that typically requires guests to wear either a tuxedo or an evening dress. The dress code is usually reserved for formal evening events, and it often gets an undeserved groan when guests spot it on a wedding invite. Women should wear a floor-length gown that is elegant and sophisticated. Men are expected to wear a tuxedo, which consists of a black dinner jacket and matching trousers, a white formal shirt, a black bow tie or alternatively a black long tie, black dress socks, and black formal shoes. If youre not sure whether your chosen attire is formal enough, you can ask yourself if you can wear it to a semi-formal party, or if it would be overdone. If its overdone, then youre in the black-tie zone. It is important to note that black-tie attire is typically required for both the wedding party and guests.