# Celebrity autumn fashion trends

> Live situation record from CLSTR: https://clstr.news/situations/celebrity-autumn-fashion-trends
> Updated: 2026-09-29T10:16:56.000Z. Sources: 5. Developments: 2.

Celebrities Sienna Miller and Kate Middleton have been noted for showcasing autumn transitional fashion trends.

Initially, Miller was observed in New York City wearing a minimal ensemble of jeans, a white T-shirt, and a beige blouson jacket, while the Princess of Wales, Kate Middleton, modeled a country-style look in the Isle of Bute featuring a Burberry trench coat and olive-green roll-neck jumper.

Subsequent reports focused on Miller’s street style during a New York press tour, highlighting a Balmain leather jacket with a cinched waist and strong shoulder pads. Miller also demonstrated the seasonal use of bold red tones, such as a red bomber jacket, which aligns with recent Autumn/Winter 26 runway presentations from designers including Prada, Schiaparelli, Alaïa, and McQueen.

## Timeline

### 2026-09-29: Sienna Miller highlights autumn fashion trends in New York

Sienna Miller's recent street style highlights key autumn trends, including cinched leather jackets and the seasonal prominence of bold red tones.

2 sources. https://clstr.news/cluster/sienna-miller-highlights-autumn-fashion-trends-in-new-york

### 2026-09-23: Sienna Miller and Kate Middleton showcase autumn fashion trends

Sienna Miller and Kate Middleton showcase autumn transitional fashion trends, featuring neutral layers and classic trench coats.

3 sources. https://clstr.news/cluster/sienna-miller-and-kate-middleton-showcase-autumn-fashion-trends

---
Cite as: Celebrity autumn fashion trends. CLSTR, https://clstr.news/situations/celebrity-autumn-fashion-trends