We wear standard tux with a vest instead of cumberbund, although if someone occasionally wears the cumberbund, it's no big deal. If your invitation letter did not specify, you should receive instructions upon your acceptance of the invitation.Okay that helps. I can do the "York Rite" look, black suite, white shirt, black tie... for now. Thanks for the heads up on the tuxedo shop! I'll need to start looking into that... Now is it standard coat or tails?