Royals have been rewearing their favorite looks for decades.Dia Dipasupil/Matt Winkelmeyer/Getty Images for Children's Hospital Los Angeles Many royals recycle their favorite outfits instead of wearing new clothes. Kate Middleton and Meghan Markle have both been known to repeat outfits. Princess Diana had old evening gowns altered to make them look brand-new. Royal style is a hot topic of conversation, as members of the monarchy often wear designer brands or start trends with their outfits.