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 19 of 22 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 19 Buckingham Palace Garden Parties — Spring Women: Daytime formal with a hat. Men: Morning suits with a top hat. Previous Next Start Slideshow The RoyalsKate MiddletonThe British Royals