Audrey Hepburn muse, and the two became so closely associated with each other that academic Jayne Sheridan has stated "we might ask 'Did Audrey Hepburn create Givenchy or was it the other way around?'". In addition to "Sabrina", Givenchy designed her costumes for "Love in the Afternoon" (1957), "Breakfast at Tiffany's" (1961), "Funny Face" (1957), "Charade" (1963), "Paris When It Sizzles" (1964), and "How to Steal a Million" (1966), as well as clothed her off screen. According to Moseley, fashion plays an unusually central role in many of Hepburn's films, stating that "the costume is not tied to the character, functioning 'silently'
Audrey Hepburn and its British version frequently reported on her style throughout the following decade. Alongside model Twiggy, Hepburn has been cited as one of the key public figures who made being very slim fashionable. Added to the International Best Dressed List in 1961, Hepburn was associated with a minimalistic style, usually wearing clothes with simple silhouettes which emphasised her slim body, monochromatic colours, and occasional statement accessories. In the late 1950s, Audrey Hepburn popularised plain black leggings. Academic Rachel Moseley describes the combination of "slim black trousers, flat ballet-style pumps and a fine black jersey" as one of her signature looks