At semi-formal functions, men can forgo a tie or bow tie, which isn't the case at a black-tie optional wedding. As for women, above-the-knee dresses replace long gowns at semi-formal events.

Men’s black tie is easy and instantly pleasing. There’s something about a pristine cut, a sleek lapel and a bow tie that brings the phwoar-factor. But women in black tie attire? Now that’s a ...

A man must wear a tuxedo at a black-tie wedding in a black hue with a bowtie either in black or another dark—yet not flashy—shade. Men’s shoes should be black Oxfords, opera pumps ...