Popsugar Fashion Kate Middleton The Royal Dress Code Rules There Are Very Specific Rules When It Comes to Dressing For the Royal Calendar June 25, 2017 by Marcia Moody View On One Page Photo 8 of 22 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 The Royal Variety Performance — November Women: The black-tie dress code calls for a floor-length gown. Men: Black tie means bow tie, dress shirt, and tuxedo. Previous Next Start Slideshow The RoyalsKate MiddletonThe British Royals