Popsugar Fashion Kate Middleton Kate Middleton's Hats The 27 Best Hats Kate Middleton's Ever Worn January 15, 2017 by Hannah Weil McKinley View On One Page Photo 26 of 27 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 26 The duchess chose a gorgeous hat by Philip Treacy for Trooping the Colour, during the queen's 90th birthday in 2016. Previous Next Start Slideshow The RoyalsKate MiddletonHats