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.
A little bit edgy, but with some serious girl band energy, the cargo trouser has been one of the breakout trouser trends of the year, and when Sienna wore hers with a bubblegum pink cashmere knit and a pointed white boot, it channelled all of the 90s energy we didn't know we needed.
Shop Sienna's Exact Jumper:
While we frantically search for the exact pair Sienna wore before they sell out (unfortunately her exact Charles and Keith boots are already out of stock), you can shop her cashmere knit from Everlane. And for the cargo sceptics who aren't quite sure if this is the trouser trend for you, keep scrolling for the pairs so good they might just change your mind, and the best pairs of white boots to wear them with.
SHOP CARGO TROUSERS
A classic, khaki cargo trouser but with the modern appeal that the Frankie Shop always delivers.
That's right, there are even leather versions too for a slicker, more polished look.
Easily the best pair of cargo trousers on the high street, and as an added bonus, they come 5 different colourways.
How to do cargo trousers, the grown up way.
Echo Sienna's wide-legged denim with Monki's utility jeans in a black. They'll go with everything from chunky knits to casual tees.
SHOP POINTED WHITE BOOTS
While we wait for Sienna's exact pair of Charles and Keith boots to come back into stock, the brand have plenty of equally good pairs of similar styles to get the same look.
We're still head over heels for western inspired boots, and this steel capped pair are bang on trend.
If you were wondering how to dress up a white boot for evening, you just found the answer.
Another take on the cowboy boot, Khaite's Dallas boot proves their chic accessories are about to be as popular as their celeb approved ready to wear.
The Cohen boot's sculptural heel makes it the perfect boot for the statement dresser.
Up Next, 11 Major Shoe Trends That Will Be Everywhere This Winter
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Sienna Miller's Under-$200 Madewell Dress Is So Chic She Wore It on the Red CarpetIt's somehow still in stock.
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15 Trend-Defying, On-Sale Picks From EverlaneCashmere, crewnecks, and cardigans—oh my!
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Sienna Miller Just Wore the Boot Trend Fashion People Use to Make Jeans Outfits Look ChicerI'll be copying this look all season.
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This Boot Trend Is Considered Intimidating by Some, But Sienna Miller Just Proved How Chic It Actually IsSo nice she wore them twice.
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Finally: Everlane Just Brought Back These Cult-Favorite Pieces for FallA highly anticipated return.
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Sienna Miller Just Swapped Her Jeans for Fall's Biggest Pant TrendThis is worth noting.
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The Trench Coat That Sienna Miller and French Women Love Is Finally Back in StockAt last!
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All the Anti-Trend Staples I'm Buying from Everlane's Tempting New SaleBasic, not boring.
