When it comes to Princess Diana's iconic style, there are so many memorable moments.
Who could forget her larger-than-life wedding gown, complete with a 25-foot train? Then, of course, there's her infamous "revenge dress"— the sexy LBD she wore to a Vanity Fair fundraiser in 1994, which also happened to be the night King Charles III (who was prince at the time) sat down for a tell-all interview.
While the late Princess of Wales knew how to dress to the nines, her off-duty style was just as legendary.
In fact, her biker shorts paired with oversized sweaters have become the go-to look during the summer-to-fall transitional weather. As soon as the temperature slightly drops, the effortless combo provides the best of both worlds: Your sweater keeps you warm and cozy, but the leg-baring bottoms allow you to enjoy the weather.
The royal, who tragically passed in August 1997 at the age of 36, mostly wore the casual outfits for a practical reason: to work out.
The month she died, Princess Diana was photographed jogging in a Harvard sweatshirt and black spandex shorts.
And in true Diana fashion, many of her athleisure outfits were full of personality, as she liked to wear bright-colored biker shorts with graphic sweaters. One of her most famous looks entailed a navy blue Virgin Atlantic sweatshirt paired with neon orange biker shorts.
With the weather starting to cool ahead of the official start of fall (Sept. 22), get inspired by reliving Princess Diana's best biker shorts and sweater looks.