At this point, whenever Sienna Miller steps out in something new, we immediately rush to take notes. Not only has she already given us a fresh, new way to wear jeans and boots and created a viral dress trend this year, but her autumn wardrobe is a masterclass in how to dress for the season with only 5 key buys, making her one of our go-tos for new style inspo.
She might come a long way from her boho roots, but it’s her latest throwback trend that just got everyone in the Who What Wear office talking. Just when we thought we’d seen the back of the Y2K renaissance, Sienna stepped out in a look that wouldn’t have felt entirely out of place on a 90s runway. The controversial trouser trend we predicted would be a success just hit the A-list, as it is officially confirmed–Sienna is officially into cargo trousers.