Sienna Miller’s Leather Vest And White Jeans Has Made Us Re-Think Our Entire Spring Wardrobe

It's official: Sienna Miller is our favourite denim influencer. FRAME's campaign star (she and her partner, Oli Green, modelled the brand's spring 2025 collection earlier this year), just celebrated the partnership in Paris, swinging by Chateau Voltaire - where else? - in an outfit formula that has been something of a signature since the early '00s.

The outfit in question was a cropped leather vest that showed off a slice of midriff and barrel-legged jeans, both of which are still available to shop from FRAME. One little, one loose, it was a perfectly balanced style equation that you can easily replicate in your wardrobe this spring. (Psst! If the vest feels slightly premature, especially with the sad tidings that temperatures may be back to zero this weekend, a black tee and leather jacket combo works just as well.)

The jeans are the outfit's real piece de resistance, however. (Barrel-legged denim also featured in the actor's collab with Marks & Spencer. Clearly, she's a fan.) And it's a style that has become almost as popular as core shapes that have been around forever. More wearable than boot-leg, more easily smartened than baggy, barrel-legged jeans can go boho or even boardroom, depending on what they're paired with.

Shop: Sienna Miller's Frame Outfit

As well as FRAME, our favourite barrel-legged jeans on the high street include Whistles, which have a more subtly rounded silhouette, Aligne and Nobody's Child.

Shop: The Best White Barrel Leg Jeans

Natalie Hammond is Grazia's senior fashion news editor. She loves winter, hates summer and can often be found writing about the weather (and what on earth to wear).