The royal was always primed for a fashion moment, even in sweats.
On the 25th anniversary of her death, we take a look back at the irreverent style icon and mom of two.
Princess Diana takes her sons, Prince William and Prince Harry, and a few of their friends go-karting at Buckmore Park racing circuit near Chatham, Kent, England, on July 9, 1992.
Skiing in Lech, Austria, on March 31, 1993.
Diana, Princess Of Wales, at Guards Polo Club.
Diana at an International Red Cross briefing in Luanda, Angola.
At Alton Towers Theme Park.
The Princess of Wales on holiday at the Austrian resort of Lech.
The Princess of Wales leaving Wetherby School, London, after dropping Prince Harry off.
On vacation in Necker Island.
Diana at the Chelsea Harbour Health Club on May 5, 1997, in London, England.
Princess Diana on a ski holiday in Lech, Austria, in April 1993.
The Princess of Wales arrives at her London health club.
Diana in Bosnia.
Diana leaving lunch at the Connaught Hotel in Mayfair.
Princess Diana on a yacht in Majorca.
Shopping in London on October 15, 1994.
Diana Princess Of Wales skiing with her sons.
Diana in St Tropez in the summer of 1997, shortly before she was killed.