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 16 of 22 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 16 Cheltenham Festival — March Women: There is no designated dress code, but women tend to go for daytime formal with a hat. Men: Suit and tie. Previous Next Start Slideshow The RoyalsKate MiddletonThe British Royals