Sienna Miller's Glastonbury Outfit Features Incredible Boots

last updated 26 June 2023

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When the words "festival fashion" are uttered, my mind goes to one of three people; Kate Moss, Alexa Chung or Sienna Miller. Dressing for a festival is the ultimate challenge; you never know what the weather is going to be like, which means you need to prepare for every eventuality. Plus, if you're a celeb who is staying on site, where phone service is spotty at best, you won't have your trusty stylist on speed dial to compare notes with. In my years spent analysing the outfits of the famous, festival fashion truly highlights those who know how to dress themselves. And Sienna Miller? She doesn't just fall into that category—she leads it.

Over the years, Miller has treated us to so many excellent festival 'fits, but her latest Glastonbury ensemble has to be her best (and one of the easiest to re-create) to date, namely because of her shoe choice.

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Proving there's more to festival footwear than wellies (sorry, Hunter), Sienna Miller took to Worthy Farm in a pair of white cowboy boots—an inspired choice with her double-denim get-up. Was she inspired by the coastal cowgirl aesthetic that's still sweeping TikTok? Ordinarily I'd say yes, but Miller isn't one to follow trends, she starts them, and I have a feeling searches for "Sienna Miller cowboy boots" are going to surge after this.

Although it's easy to make the Western leap, what I also love about this Sienna Miller outfit is just how distinctly French it feels, owing to the retro styling appeal of her boots and their year-round versatility, I spot more French women wearing cowboy boots than anyone else, be it with floral dresses, short skirts or indeed, denim shorts, just like Sienna.

Inspired by her Glastonbury shoe choice? I thought you might be. Below you'll find a selection of the best cowboy boots around, from Mango, ASOS, Zara and many more.

Shop Cowboy Boots Like Sienna Miller's

Free People

Vegan Ranch Boot

This pair comes in so many gorgeous colourways including Sienna's preferred white shade.

Reformation

Otto Mini Western Boot

Silver makes for an excellent, party-ready choice.

Mango

Cowboy Leather Boots

These also come in black.

Urban Outfitters

Black Western Cowboy Boots

Just add a printed midi dress for an easy summer look.

Warehouse + Suede Contrast Ankle Western Boot

Warehouse

Suede Contrast Ankle Western Boot

Suede textures look softer against lighter colour palettes.

ASOS

Cupid Contrast Western Knee Boot in Black and Red Mix

The flash of red feels incredibly authentic.

Zara

Leather Cowboy-Heel Boots

Sleek and pared-back; a modern update courtesy of Zara.

Free People

Brayden Western Boots

Khaki green makes for a unique but no less versatile choice.

Ganni

Leather Cowboy Boots

Cowboy boots have become a Ganni style signature.

Sézane

Phoebe Boots

French brand Sézane's offering is wide enough to tuck straight-leg jeans into.

Mango

Leather Cowboy Boots in Silver

The thick sole is ideal for traversing muddy festival fields.

Isabel Marant

Rouxa Denim Ankle Boots

Isabel Marant consistently pushes the boundaries of cowboy boots.

Aspiga

Camilla Cowboy Boots

These also come in a chic white leather style.

Khaite

Dallas Leather Knee Boots

Minimalist? Then this is the cowboy boot for you.

Paris Texas

Dakota Suede Boots

Okay, so ecru suede might not be the most practical option but they're up there in terms of fabulousness.

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Sienna Miller Festival Fashion

Maxine Eggenberger is Who What Wear UK’s deputy editor and has over thirteen years of experience in fashion journalism. She been creating engaging and elevated style content specifically for Who What Wear UK since 2018, covering runway reports, emerging trends, long-form features, self-styled shopping stories and columns, including her edit of the best new-in buys. She ensures the highest editorial standards are met across the site, leads the editorial team in their SEO strategy and keyword planning, works closely with the beauty team on content initiatives, represents the brand at industry events, and regularly contributes to social media, including her own Who What Wear UK TikTok franchise, French Style Fridays. Previously, Maxine appeared on ITV's This Morning in her own fashion segment and has interviewed countless celebrities—everyone from Victoria Beckham to Oscar winner Lupita Nyong’o.

Prior to Who What Wear UK, Maxine’s career began when, after completing her first-ever internship at Look magazine, she was offered a position on the brand's fashion desk. She accepted, leaving university a year early in the process. Her passion and natural talent for writing and styling meant she swiftly rose through the ranks to become the title's fashion news and commercial content editor, with a stint as InStyle.co.uk’s fashion and beauty writer along the way. She later served as Look’s acting Editor in Chief, overseeing both print and digital, before embarking on a successful freelance career, working with Grazia, The Pool, and Marie Claire amongst others. Maxine is based remotely from her countryside home near Edinburgh where she spends her downtime renovating her house, walking her dogs, hosting friends and trying to master the art of making Old Fashioned cocktails.