Popsugar Fashion Celebrity Fashion Do Royals Wear Gym Clothes? Do Royals Wear Gym Clothes? Hell Yes! And Princess Diana Started It 7 November 2018 by Sarah Wasilak View On One Page Photo 13 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 Crown Princess Mary Princess Mary of Denmark often wears a polo with the collar up at sporting events. Previous Next Start Slideshow Celebrity FashionThe RoyalsBiker ShortsSweatshirtsMeghan MarkleWorkout ClothesThe British RoyalsCelebrity Street StyleSneakersGym