Sienna Miller Is Our New Off-Duty Style Guru

The "Sienna-ssance," as we like to call it, started about this time last year. Following a knockout turn in Miu Miu at the Golden Globes in 2015, Sienna Miller, in conjunction with her über-styist Kate Young, began to rewrite the fashion history books by fully shaking off her original bohemian image and crafting a new, exciting sartorial path.

It's one that has since been tinged with a pared-back confidence (aided by lots of Céline and Gucci) by day and more adventurous catwalk choices by night—she wowed in gown after gown throughout Cannes 2015 (where she was a judge on the event's panel), and we're hoping for more of the same when the film festival kicks off next month.

In the past few weeks, a couple of off-duty Miller-branded ensembles have really inspired us to rethink our day-to-day outfits. Her ratio of minimal to maximal is the perfect balance of understated, only with excellent flashes of personality. Go through the gallery to see how the style icon is doing casual now and shop from her looks…

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(Image credit: Tal Rubin/Getty Images)

On Sienna Miller: Gucci Men's jacket; Superga 2750 White Plimsoll Trainers (£50).

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(Image credit: Rob Kim/Getty Images)

On Sienna Miller: Trademark Front-Slit Pant (£240); Gucci Peyton Pumps (£680) available with Faux-Pearl-Heel.

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(Image credit: Raymond Hall/Getty Images)

On Sienna Miller: Gucci Men's jacket; Maryam Nassir Zadeh Penelope Mule (£270) available in Navy.

Related: Why Does the Boho Trend Never Disappear?

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(Image credit: Action Press/Rex/Shutterstock)

On Sienna Miller: Maryam Nassir Zadeh Penelope Mules in Saddle Brown Suede (£267).

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(Image credit: Mediapunch/Rex/Shutterstock)

On Sienna Miller: Céline jumpsuit; Ray Ban Round Sunglasses (£113); Marc Jacobs Patent Leather Sandals (£495).

Shop for Sienna-friendly pieces:

Related: The Simple Reason These Clothes Look More Expensive

Hannah Almassi
Editor in Chief

Hannah Almassi is the Editor in Chief of Who What Wear UK. Hannah has been part of the the Who What Wear brand since 2015, when she was headhunted to launch the UK sister site and social channels, implement a localised content strategy and build out the editorial team. She joined following a seven-year tenure at Grazia magazine, where she led front-of-book news, fashion features and shopping specials as fashion news and features editor. With experience in both print and digital across fashion and beauty, Hannah has over 16 years in the field as a journalist, editor, content strategist and brand consultant. Hannah has interviewed industry heavyweights such as designers including Marc Jacobs and Jonathan Anderson through to arbiters of taste including Katie Grand and Anna Dello Russo. A skilled moderator and lecturer specialising in the shift to digital media and e-commerce, Hannah’s opinion and work has been sought by the likes of CNBC, BBC, The Sunday Times Style, The Times, The Telegraph and MatchesFashion.com, among many others. Hannah is often called upon for her take on trends, becoming known as a person with their finger of the pulse of what’s happening in the fashion space for stylish Brits. Hannah currently resides in Eastbourne with her photographer husband, incredibly busy son and highly Instagrammable cat.