Sienna Miller Just Wore the Easy Summer Outfit That's All Over Zara and M&S

Sienna Miller is currently promoting her upcoming TV series The Loudest Voice in New York. Yesterday, for one of her interviews, she wore the perfect throw-on summer look: a green trouser suit with a white T-shirt and cream pumps. Her grass-green single-breasted trouser suit is by Gucci, as are her cream pumps with gold buckles on the toes. However, this is an outfit you'll find up and down the high street this summer.

Earlier in the year, John Lewis Partners' green wide-leg trouser suit proved to be a hit with the fashion crowd and sold out quickly. Since then, it has since been restocked in a couple of sizes. Marks and Spencer and Zara are also going big on paint-box-coloured trouser suits. In fact, M&S has a mint-green double-breasted style that's just as punchy as Sienna's.

Miller's costar Naomi Watts also wore a fail-safe summer outfit to the interview, pairing a black Batsheva midi dress featuring pearl button details and exaggerated puffy sleeves with white mules and rose-coloured sunglasses. Keep scrolling to see these perfect summer looks, and then shop the best green suits on the high street right now.

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On Sienna Miller: Gucci trouser suit and shoes

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On Naomi Watts: Batsheva sress

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Related: We Try Before You Buy: 9 of the Best Trouser Suits

Next up, see our guide on how to wear a trouser suit.

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Emma Spedding
Freelance Fashion Editor

Emma is a freelance fashion editor with over 15 years experience in industry, having worked at The Telegraph, Grazia and, most recently, British Vogue. Emma was part of the founding team of Who What Wear UK, where she worked for six years as Deputy Editor and then Editor—helping shape the team into what it is today is one of the biggest privileges of her career and she will always see herself as aBest Knockoff Luxury Clothing girl, contributing to both the US and UK sites. Whether she's writing about runway trends or spotlighting emerging brands, she aims to write about fashion in a way that is democratic and doesn't promote over consumption.