Every fashion person knows that sometimes there's nothing more appealing than wearing an all-black outfit, and this is clearly a sentiment shared by Sienna Miller, who stepped out in London styling an easy outfit composed of head-to-toe black—save her brown tote bag—in the chicest way.
Selecting a cosy knit to set her up for the chilly weather, the actor forwent classic blue jeans and instead opted for a black pair with a flared cut. Inconspicuously layering her jeans over one of the most prevalent boot styles of the season (and every other season for that matter), Miller completed her ensemble with a pair of black cowboy boots. Refining the slouchy energy of her flared jeans with the pointed-toe shape and small block heel of her black boots, Miller created an elegant outfit that spoke to her penchant for a '70s silhouette whilst keeping things very simple with her black colour palette.
Whilst styles including moto, ankle and riding boots are also trending hard this season, the classic cowboy boot has transcended to wardrobe-staple territory, having already earned a place in the collections of most fashion people before 2024. Miller naturally opted for a minimal pair to match the rest of her understated look, steering clear of bold colours and statement embroidered motifs—unlike other pairs currently on the market that come in a range of colours and embellishments.
There's something about cowboy boots that always makes them feel so fashionable to me. Where a pair of black sock boots would have still looked chic, choosing cowboy boots is just that—more of a choice, and one that makes everything else you wear with them look more trendy by proxy. No doubt about it: Miller's flared jeans and cowboy boots pairing is one I'll be emulating for the foreseeable.
To shop the off-duty ensemble that will have you looking polished with ease, read on to discover Miller's style and shop our edit of the best cowboy boots and flared jeans.
SHOP SIENNA MILLER'S COWBOY BOOTS OUTFIT:
This classic knit is perfect for daily wear.
These also come in nine other shades.
These look so comfy.
Shop this classic bag whilst it's on sale.
SHOP OUR COWBOY BOOTS EDIT:
A knee-high/cowboy hybrid.
The kitten-heel boots trend is taking off this season.
These also come in two other shades.
The 5cm heel adds some extra height without sacrificing comfort.
Style with a midi skirt for a chic early-winter look.
Tuck your jeans into these boots or wear underneath a baggy pair.
SHOP OUR FLARED JEANS EDIT:
These look well above their £36 price tag.
Tuck in a ruffled blouse for a chic, boho-inspired look.
These come in sizes XS 5XL.
These also come in a deep-blue wash.
Style with a kitten heel if cowboy boots aren't your thing.
This pair has a good amount of stretch.
-
See You Next Summer, Light-Wash Jeans—for Fall, This Is the Only Denim Trend That MattersAs seen on Hailey Bieber in L.A.
-
You're 100% a Fashion Person If You're Styling Your Jeans in This Chic Way for Fall 2025A game-changing styling trick.
-
Pump the Brakes on Booties—Kate Hudson Knows the Better Fall Shoe Trend to Pair With DressesThis outfit combo is top-tier.
-
Spotted on Kendall and Hailey: The Pant Color Trend People Are Swapping Blue Jeans ForIt girls with good taste know best.
-
Cool It On the Skinny Jeans—Chic People Are Wearing These 6 Fall Denim Trends InsteadAre you taking notes?
-
Jeans, Flats, Jackets, and Sweaters—The Best of the Best In Each Category For FallMeet your new hero pieces.
-
Hold the Light-Blue Jeans—People in Paris Know This Denim Trend Is Far Superior for FallIt's so elegant.
-
I'm Getting a Jumpstart on Fall Shopping—33 Affordable Key Pieces You'd Find In a Wealthy Person's ClosetIt girl-approved.
