Sienna Miller’s £60 Mango trousers are on sale for just £19.99

When you think of an easy breezy summer outfit, high-waisted trousers might not be the first item of clothing that springs to mind. But Sienna Miller just proved all of the naysayers wrong with a cool off-duty look you can wear in any weather – including this weekend’s heatwave.

The actress was spotted out and about in New York wearing a casual combination of a white ribbed vest, an oversized tote bag and a pair of cream belted trousers (as well as everyone’s new ultimate essential, a face covering). And while those trousers might look like an expensive designer buy, we were pleasantly surprised to find that they’re from high street hero Mango – and even better, they’re now on sale.

Sienna Miller Mango trousers
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Previously priced at £59.99, the trousers are now under £20, and amazingly, still in stock in a number of sizes on the Mango website (although, after scoring the Sienna seal of approval, we’d imagine that this won’t be the case for long).

With an oversized fit, flattering straight leg, breathable cotton fabric and dart detailing on the front, these are trousers that will take you anywhere – from the office to date night to a summer barbecue in the garden and back again. Simply make like Sienna and tuck in a closer-fitting vest or plain white tee to balance your silhouette, and you’ll be good to go.

Sienna Miller Mango trousers

Belt Cotton-Blend Trousers, £19.99 (was £59.99), Mango  

The outfit taps into the star’s predilection for neutrals – almost all of the looks we see her in these days follow this palette, which is great for building a capsule wardrobe that allows you to mix and match.

Speaking to Harper’s Bazaar previously, Sienna said of her personal style evolution: ‘I never used to mind drawing attention to myself through what I wore. I didn’t mind being quite brave and colourful and I don’t want that anymore.

‘The mini-skirts and stuff… It was great and I was in my twenties, but I’ve grown up a little bit. I love classic fashion; for now, I’m in a toned down, mellow state.’