Sienna Miller Just Wore 2025’s Biggest Colour Trend With a Classic Burgundy Boot

Having spent so many years at the epicentre of the British style scene, Sienna Miller is always an excellent temperature check for the trends set to ripple across London over the next few months. While always upholding her strong sense of style, Miller isn’t afraid to approach a new-season trend. But, instead of letting fresh-from-the-runway items dominate her outfits, the style icon blends new trends into her wardrobe almost inconspicuously—never letting them dominate her well-refined sense of style.

As such a strong force on the London street style scene, I’m always primed to pay attention when we’re treated to a new Miller look, and her most recent outfit is one of the strongest I’ve seen for a while. While we’re still sitting snugly in these early winter days, Miller’s outfit proved that her mind is already brimming with thoughts of spring/summer 2025. Styling a neutral ensemble, save a few notable pops of colour, Miller crafted an elegant base with a new-season twist. Selecting a sleek Prada bag in a light blue shade, Miller nodded to the new-season colour that will be taking over next year.

With a fresh, icy energy, a light blue hue adds an understated pop of colour that brings brightness and lightness to every ensemble. Cropping up across multiple runway spring/summer 2025 runways collections including Paul Costelloe and Jil Sander, the fresh shade is gearing up to dominate the next few months. While Miller’s baby blue bag worked well with her sandy ensemble, it was the burgundy boots pairing that really made her outfit sing.

Dominating shop fronts right now, the burgundy shoe trend is one of the heroes of the autumn/winter season. Allowing the wearer to move away from a black colour palette while retaining a rich and moody edge, burgundy shoes add a warm wash of colour and an elegant point of interest to an outfit in a low-key but impactful way.