The Duke And Duchess Of Cambridge Attend The America's Cup World Series [Getty Images]

PORTSMOUTH, ENGLAND - JULY 26: Catherine, Duchess of Cambridge, Royal Patron of the 1851 Trust, accompanied by Prince William, Duke of Cambridge attends the America's Cup World Series on July 26, 2015 in Portsmouth, England. (Photo by Karwai Tang/WireImage)

WireImage Karwai Tang