Attire: The term "black tie optional" (you may also see it called "formal") can seem confusing, but it actually makes your outfit choice more flexible. While this is still an elevated event, men are not required to wear a tuxedo (although it's encouraged). A dark suit is acceptable. Women are more than welcome to wear a floor-length dress, but if you prefer a knee-length cocktail dress, then feel free.

Attire: Cocktail/Former