Sienna Miller Just Wore the High-Street Coat I Predict Will Sell Out Before October

If there's one stylish celebrity that the Who What Wear team always takes note of, it's Sienna Miller. Of course, there are the red carpet looks that set our group chat alight, but we're also constantly taking style notes from her everyday outfits. Moving between smart tailoring and soft boho silhouettes, blending high-end pieces with expensive-looking high street wares, her wardrobe is truly enviable, and just now the style muse has stepped out in a Mango coat that we've all simultaneously added to our baskets.

It's far from the first time that Sienna Miller has stepped out in a Mango piece. Just like us, she recognises the brand's ability to make an affordable piece look like a high-end buy. Arriving at the press junket for 'War' yesterday, she was spotted wearing the Mango Tailored Wool Coat, a classic autumn/winter piece with sharp shoulders, a long silhouette and sleek grey colourway.

Crafted from a mix of cotton and wool, the coat proves once again that a series of great capsule wardrobe staples can create seriously elegant looks. In fact, the majority of her outfit comes from Mango's Selection collection. Here she's paired the coat with a simple blue shirt, untucked to bring her signature laid-back edge, with classic black trousers and a dash of red through heeled sandals. The entire look is polished and poised, and shows that a great coat can do the heavy lifting in the cooler months. To finish, a selection of Monica Vinader accessories has been added, including the Ochre ring and Heirloom necklace. As Sienna Miller-approved high street pieces tend to move fast, let's scroll on to shop her exact outfit and explore more sleek staples from Mango.

Shop Sienna Miller's Look

Shop More Mango Buys We Think Sienna Miller Would Adore