Alexa Chung just proved that Cannes Film Festival’s most stylish moments aren’t reserved for the red carpet.

Days after wearing a beautiful Celine gown to the premiere of Ari Aster’s new film Eddington, the style icon was seen leaving her hotel in an effortlessly cool look, teaming a khaki trench coat with white jeans and a lace-trimmed black top. The best part? Alexa’s It-girl coat is from Mango.

Alexa was wearing the high-street hero’s oversized creased-effect trench, which costs £229.99. With slouchy sleeves, a statement-making collar and louche strip cuffs, Mango’s new trench has a nonchalantly cool vintage feel.

Fancy smartening up the borrowed-from-the-boys silhouette? Simply cinch in at the waist with the coat’s belt. Mango gets extra points here, seeing as this trench comes with two belt varieties to choose from.

Versatile and suitable year-round, this coat is a fashion editor favourite for a reason. Dress down with jeans, leather flats and an on-trend pair of oversized sunglasses à la Alexa, or up with kitten heels and a mini-dress for a sultry evening look.

Like we said, trenches are an all-season coat, but they really come into their own at this time of year when warmer weather means we don’t have to stuff layers of knits beneath them in a bid to keep warm.

The perfect throw-on-and-go coat (especially on a cloudy day), they’re waterproof, breathable and, perhaps most importantly, polished. It’s no wonder trench coats are an A-list favourite.

Now that we’ve established the trench coat is an integral part of any modern wardrobe, you might want to shop Alexa’s while you can – we have an inkling it’s going to be flying off Mango’s shelves.