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If there’s one person we always look to when a new outerwear trend starts bubbling up, it’s Alexa Chung. The model, presenter and perennial style muse has a knack for spotting the jackets that are about to be everywhere – and her latest look confirms what fashion insiders have been quietly noting all season: washed, worn-in leather is spring’s coolest jacket trend.

Spotted crossing the street in Paris, Chung styled an oversized, slightly distressed leather jacket over a layered sweatshirt and crisp collared shirt, finishing the look with straight-leg jeans and ballet flats. The result is the sort of outfit she has long perfected – effortless, slightly undone and quietly directional, the kind of look that instantly makes you rethink your spring outerwear.

What makes the moment even more appealing is where her jacket comes from. Rather than a rare vintage find or an investment runway piece, Chung’s relaxed leather layer is courtesy of the high street, specifically Mango.

The exact style – Mango Oversized Leather Jacket With Lapels – captures the mood of the trend perfectly. With its roomy silhouette, relaxed lapels and subtly worn finish, it has the kind of vintage character that usually takes years of wear to achieve. It’s easy to imagine throwing it on over everything from tailoring to spring dresses, though it works particularly well styled as Chung has done here, with relaxed denim and simple layers.

While Chung may have given the trend her stamp of approval on the streets of Paris, the look has also been quietly gaining traction on the runway. Designers such as Saint Laurent, Miu Miu and Loewe have been leaning into soft, slightly distressed leather outerwear in recent seasons, favouring oversized bomber and biker silhouettes that feel relaxed rather than rigid.

All of which explains why Chung’s outfit feels so current. The beauty of this particular jacket trend is that it doesn’t feel overly polished – instead, the slightly weathered finish and relaxed fit give it a cool, effortless energy that works just as well with denim and knitwear as it does with dresses or tailoring.

And that’s exactly why the Mango version is such a good find. It taps into the same oversized proportions and vintage-leaning texture that have been appearing on the runway, but at a much more accessible price point.

For those tempted to follow Chung’s lead, there are plenty of alternatives that capture the same mood. Reformation’s Veda Daphne Leather Bomber (£658) offers a beautifully soft take on the oversized bomber shape, whilst Maje’s Cropped Leather Jacket (£679) delivers a slightly sharper interpretation.

More classic silhouettes also tap into the trend. Levi’s Genuine Leather Moto Jacket (£182, reduced from £365) offers a timeless biker style, whilst H&M’s Leather Jacket (£379.99) proves the high street is leaning heavily into the look.

Prefer faux leather? Brands such as Abercrombie & Fitch and Noisy May have released relaxed leather-effect styles this season – meaning it’s easier than ever to tap into the trend.

Still, if Chung’s outfit proves anything, it’s that the appeal of this jacket lies in its ease. A slightly worn leather jacket has the rare ability to make even the simplest outfit feel instantly cooler – and if the fashion set and the runways are anything to go by, it’s a piece we’ll be reaching for all spring long.