Sienna Miller’s second collection for Marks & Spencer has just dropped – these are the 8 items Stylist’s fashion team predicts will sell out

M&S x Sienna Miller collection

Credit: M&S

Fashion


Sienna Miller’s second collection for Marks & Spencer has just dropped – these are the 8 items Stylist’s fashion team predicts will sell out

By Harriet Davey

6 months ago

4 min read

Sequins, tiger print, lime green: the new winter collection is here to liven up all your new season looks. Thanks, Sienna!


When two national treasures collide, great things happen. And this is what happened during the summer when actor Sienna Miller dropped a killer collection with high street hero Marks & Spencer. The boho babe is known for showstopping outfits fashioned from great denim and billowing blouses, and this is exactly what we got from the sell-out M&S x Sienna Miller collection back in June. 

Causing a stir among fashion people, Sienna Miller fans and avid M&S shoppers, it’s no surprise the duo has teamed up once again for a second collection, landing in stores and online today. When our fashion team went to the launch party for a sneak peek, their initial reactions included: “That white suit Sienna is wearing needs to come home with me.”

The suit in question? A three-piece number (you can see the blazer below) that made everyone in the room suddenly want to throw caution to the wind, risk coffee spillages and follow suit (pun intended). 

So what can you expect to find in the 35-piece edit? There’s velvet tiger print tailoring (with matching belt and bag), lime green shirts, sequin mini skirts and dresses and yes, of course, Sienna-style slip dresses, ruffle blouses and faux fur jackets. 

M&S x Sienna Miller

Credit: M&S

While we’re quite frankly obsessed with the full collection, the Stylist fashion team wanted to highlight the key pieces they predict will sell out. And if it’s anything like the first collection, that almost certainly will happen. And our verdict? Of course, that white suit Sienna has already been seen wearing will be the first to go. Closely followed by the standout tiger print version that will make for the perfect party season outfit. And when it comes to skirts, the silver sequin mini is calling out to be worn with a roll neck and matching silver heels for a Christmas soirée. The pink satin midi will be your new office look (with a grey cashmere knit and knee-high boots). And the dress to shop? After seeing this green satin midi/maxi (depending on your height) on guests during the launch party, we can confirm it’s one of those styles you’ll wear again and again on any given occasion. 

So without further ado, these are the eight pieces from the new M&S x Sienna Miller winter collection we think will be the bestsellers from the 2.0 drop.  

Shop M&S x Sienna Miller

M&S X SIenna Miller Double Breasted Jacket

M&S x Sienna Miller double-breasted jacket

This is the exact blazer Sienna Miller wore at her launch party – complete with matching waistcoat and trousers – and we have no doubt this set will be a sell-out. Versatile across all seasons, you could throw this over a slip dress for party season, wear it with jeans for work and take it through to summer with shorts. It would also make a great bridal outfit, so add this to your wishlist, future brides of 2025.

Shop M&S x Sienna Miller double-breasted jacket, £129

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m&s dress

M&S x Sienna Miller satin maxi dress

When you see this bold green beauty on, you’ll wonder how it’s under-£80. Easily mistaken for a designer find, the satin style with ruched detail, slightly open back (don’t worry, you can still wear a bra) and the draped front are what partywear dreams are made of. 

Shop M&S x Sienna Miller satin maxi dress, £79

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M&S X SIenna Miller Velvet Blazer £125 (2)

M&S x Sienna Miller velvet blazer

It’s the time of the year when you can go all-out with your outfits, so we suggest embracing party season in all its fun glory. Warning: this bold blazer will get so many compliments, you may not want to go back to your trusty black version in a hurry. 

Shop M&S x Sienna Miller velvet blazer, £125

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M&S X SIenna Miller Velvet Trouser

M&S x Sienna Miller Velvet Trouser

A co-ord is the easiest outfit formula you can wear, no matter the time of year, so make party dressing that little bit easier by getting the trousers, too. Psst… there’s also the matching waistcoat if you want to be fully inspired by Sienna’s three-piece pairing. 

Shop M&S x Sienna Miller velvet trouser, £79

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M&S X SIenna Mille Satin SLip Skirt

M&S x Sienna Miller satin slip skirt

A longstanding item in most people’s wardrobes, the slip skirt can do no wrong in our eyes. In a soft pink, you’ll end up wearing this with clashing red shoes and a cami top for evening or with a cosy knit and glossy boots for daytime plans. It also works so well with silver or gold jewellery. 

Shop M&S x Sienna Miller satin slip skirt, £59

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M&S X SIenna Miller Silk Blouse

M&S x SIenna Miller silk blouse

We can just imagine Sienna wearing this with wide-leg jeans, a trench coat and an of-the-moment suede tote bag. So this is exactly how we suggest trying it out for autumn/winter 2024. It’ll look equally chic for after-dark over a satin bra with leather trousers. 

Shop M&S x Sienna Miller silk blouse, £99

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M&S X Sienna Miller Sequin Mini Skirt

M&S x Sienna Miller sequin mini skirt

Like a magpie, we’re instantly drawn to this sequin mini skirt. Also available in dress form, we know that this will be a plus one to so many parties around the festive period. Sequins aren’t just for Christmas, though; you could easily wear this with a white shirt and biker boots. 

Shop M&S x Sienna Miller sequin mini skirt, £75

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M&S X Sienna Miller Daux Fur Jacket

M&S x Sienna Miller faux fur jacket

The winter drop isn’t all party-focused, and you’re bound to be drawn to the cosy coat offerings. This buckled style is a winter hero – try it out over floaty dresses or with barrel-leg jeans (there are some in Sienna’s collection) with Western boots. 

Shop M&S x Sienna Miller Daux Fur Jacket, £89

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Images: courtesy of M&S 

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