What is "Formal Attire"?
"Formal Attire" may be confusing. To clarify, ballgowns and tuxedos are not required or expected, those are optional.
“Formal Attire” means:
For women: A long dress, cocktail dress, pantsuit, tailored dress, skirt suit, or jumpsuit.
For men: A suit with a collared or non-collared shirt, or simply a dress shirt and pants, with or without tie or bow-tie.
What matters most is having you there. So wear what makes you feel great, and be ready to celebrate!