Queen Letizia -
Letizia of Spain arrives at the Club Nautico in Palma de Mallorca, Spain, in casual wear.
Princess Maria-Olympia of Greece -
Back in 2016, the young princess was spotted in New York City wearing a black T-shirt, denim shorts, and grey ankle boots.
Mette-Marit, Crown Princess of Norway -
The Norwegian princess dressed down to participate in a waste clean up in 2016.
Prince William and Kate Middleton -
The Duke and Duchess of Cambridge looking like college students after being made honorary members of the Canadian Rangers.
Princess Beatrice -
Princess Beatrice of York looking relaxed in activewear.
Princess Charlene -
Charlene, Princess of Monaco, attends the 24 Hours of Le Mans race in France looking like a rock star. We love the leather jacket!
Prince Harry and Meghan Markle -
The couple looking casual while walking through the Abel Tasman National Park in New Zealand.
Princess Diana -
Lady Di in a sleeveless denim top, capris, and woven espadrille flats, during a visit to Luanda, Angola, in 1997.
Princess Eugenie -
Princess Eugenie's casual look on her first day as a student at Newcastle University.
Kate Middleton -
Kate dressed down to play soccer with the girls at the National Stadium in Belfast, Northern Ireland.