A pioneer of the varsity aesthetic for adults, Diana wore her fair share of collegiate crewnecks, baseball caps, and bike shorts. In 2019, Hailey Bieber recreated many of the late princess's most famous sportswear looks in a shoot for Vogue Paris. In three words, Marie Claire Design Director Wanyi Jiang encapsulates her fall style as easy, cozy, and natural. Great autumnal fashion is best...