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.

Choosing formal attire for men is a little less involved, as the options are far fewer. “Formal wedding attire for men typically involves a dark suit, preferably in black, navy, or charcoal gray ...