Dress code:  White Tie (optional) — gentlemen are kindly asked to wear either a dark suit or a tuxedo, with tailcoats being optional for those who would like to embrace the full White Tie tradition. Ladies are welcome in long evening gowns (optional), or simply an elegant, floor-length evening dress. For those who’d like to fully embrace the Viennese ball spirit, tailcoats, tuxedos, and gowns can all be rented locally — please let us know in advance and we’ll be happy to share rental options and details. Pro tip for the ladies: Vienna’s balls are famous for dancing well into the early hours! Wear shoes you’ll be comfortable dancing in all night — or consider bringing a pair of elegant flats or other comfortable change-of-shoes for later in the evening.