Actress Sienna Miller is nothing short of a style icon, and her vintage boho looks that defined early noughties festival fashion – floppy hats and studded belts with a dash of paisley about covers it – are a case in point.
MORE: We are obsessed with Sienna Miller's Wimbledon date outfit
But it must be said, the 40-year-old's style has evolved and she can certainly hold her own when it comes to more casual outfits, with her street style photo archive serving as a sartorial reminder that if ever in doubt, channelling Sienna Miller is always a good idea.
Hello! Fashion takes a look at some of Sienna Miller's classic street style looks for eternal off-duty outfit inspiration:
Sienna Miller wears… a colour blocked leather jacket
© Photo: Getty ImagesBack in 2016, the actress styled a classic button-down shirt with cropped grey skinny jeans and white lace-up trainers, finishing off her outfit with some statement outerwear in the form of a boxy structured leather jacket.
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Sienna Miller wears… an embroidered longline coat
© Photo: Getty ImagesThe actress proved that boho isn't merely a phase, but a lifestyle outside the Dior show in Paris in 2017. Sienna brought back the 1970s-reminiscent trend with a black wool coat, elaborately embroidered with floral motifs.
Sienna Miller wears… a Louis Vuitton Cannes bag
© Photo: Getty ImagesFor Louis Vuitton's autumn/winter 2019 show, Sienna accessorised her asymmetric checked coat with the brand's playful cylinder-shaped Cannes bag – an ensemble more than suitable for a glamorous Parisian affair.
Sienna Miller wears… a pinstripe suit
© Photo: Getty ImagesSienna's rusty pinstripe suit is a masterful example of cool tailoring. Papped outside The Today Show in November 2019, the actress looked effortlessly chic in oversized silhouettes and acetate shades.
Sienna Miller wears… a sheepskin coat
© Photo: Getty ImagesAt her style core, Sienna is quite clearly a 1970s gal. The actress looked radiant on the streets of Utah in 2020, sporting a cosy sheepskin coat, a black polo neck and studded shearling boots.
Sienna Miller wears… a silver sequin blazer
© Photo: Getty ImagesGucci's Love Parade held in Los Angeles last November was strewn with the hottest names in fashion, and yet, Sienna made her mark with ease in a silver sequinned double-breasted blazer, monogrammed tights and major T-bar platforms.
Sienna Miller wears… a white broderie anglaise dress
© Photo: Getty ImagesSienna was the picture of elegance at this year's Wimbledon tournament in a Bardot Ralph Lauren lace number which she teamed with a chunky black belt and snake print sandals.
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