The surprising image stood in stark contrast to her usually polished image.
When Kate Middleton stepped out of a royal limousine in front of Westminster Abbey in 2011, the world gasped as it caught its first sight of Britain's future Queen clad in a lacy confection of an Alexander McQueen dress.
Alternatively, make like Pippa in one of the monochrome bikinis lined up below.
The Duchess of Cambridge's brother, James Middleton.