The Duchess of Cambridge's nautical outfit at The King's Cup regatta

Kate Middleton steps out at Cutty Sark to launch sailing competition looking gorgeous in nautical chic

Kate Middleton flaunts nautical outfit as she joins Prince William for Kings Cup Regatta

George shows off gappy smile as he joins Charlotte, Kate and Wills at Regatta

Prince George, Princess Charlotte steal the show at regatta - Good Morning America

The Duke and Duchess of Cambridge attended The King's Cup

Kate in Nautical Ensemble to Launch King's Cup Regatta with William – What Kate Wore

The Duchess of Cambridge chose a chic nautical look for The King's Cup regatta

Kate Middleton vs. Prince William At Sailing Regatta: A Family Affair In Photos

Kate and Wills race in King's Cup regatta on the Isle of Wight

The Duke and Duchess of Cambridge Launched The Inaugural Regatta The King's Cup

Prince George and Princess Charlotte (blue dress) are watched by Carole Middleton (blue hat) and Michael MIddleton (red coat) as the Duke and Duchess of Cambridge participate in the King's Cup Regatta

Prince George and Princess Charlotte (blue dress) are watched by Carole Middleton (blue hat) and Michael MIddleton (red coat) as the Duke and Duchess of Cambridge participate in the King's Cup Regatta