When it comes to Sienna Miller's outfits, the bar is seriously high. I always love seeing what she's wearing, but this festive ensemble has to be one of my all-time favourites!
She attended The King’s Foundation’s Christmas carol service at St. Paul’s Church in Knightsbridge, London this week, wearing a tailored navy jumpsuit, teamed with an eye-catching gold necklace and Christmassy red accessories. Anyone who's trying to avoid sequins and dresses for their Christmas party outfits - this one's for you!
Taking a page out of Kate Middleton's book, Sienna's outfit had a hidden meaning. After a big year (which included two collections for British clothing brand M&S, no less!), it's just been announced that she is the newest Ambassador for The King’s Foundation, joining the likes of David Beckham.
She said of the role "I am particularly looking forward to exploring my interest in textiles and textile production. I’m excited to support the huge range of hands-on opportunities for young people to develop their talents in the sector and see the amazing things they go on to next."
Rather fittingly, her navy jumpsuit is the herringbone cashmere all-in-one, from the Net-A-Porter for The King's Foundation collection. It looks to me as if she's wearing a camelia necklace by Chanel too, which is perhaps a nice nod to the Chanel & King's Foundation Métiers d'art Embroidery Fellowship.
Shop navy jumpsuits
Sienna's exact jumpsuit has now sold out, but this is an incredibly good match. The wrap over front and wide leg cut is super flattering, and jumpsuits are a such a chic alternative to dresses at this time of year.
This all-in-one is worthy of a place on our list of best jumpsuits. It's a bit of an investment, but really, can you think of any occasion that this wouldn't work for? Me neither.
A more casual take on Sienna's jumpsuit, this budget-friendly buy can be dressed up with heels and plenty of jewellery.
Sienna added the most Christmassy shoes of them all - a pair of ruby red velvet platform heels by Jimmy Choo. They're unfortunately sold out in red, but if it's your lucky day you might find your size in the purple version, which are currently 40% off at MyTheresa. Happy shopping!
Shop festive accessories
The ideal heel to give yourself a boost in height but also stay comfortable enough to be on the dancefloor all night, this is a purchase you won't regret. Red velvet? Delicious!
Sienna's box clutch also looks like it might be by Jimmy Choo but if you're after a high street take, Phase Eight has got you covered. It's roomy enough for all your essentials and the bright red colour complements navy.
You won't get much change from £2,000 for a similar version of Sienna's Chanel necklace, however this Oliver Bonas option offers the same head-turning effect for a fraction of the price.
-
Dr Hilary Jones reveals the two 'ideal' exercises for losing weight and keeping it off for goodThe doctor appeared on Lorraine to share his tips on how to burn more calories in the gym, outdoors or at home
-
Denise Lewis’ sultry take on the lace trend has convinced us to give it a go at our next special eventDame Denise Lewis wore a sensational lace pencil dress to the 2025 MOBO Awards and it's a sophisticated way to wear this trend
-
Denise Lewis’ sultry take on the lace trend has convinced us to give it a go at our next special event
Dame Denise Lewis wore a sensational lace pencil dress to the 2025 MOBO Awards and it's a sophisticated way to wear this trend
-
I've been eyeing the DeMellier New York tote that's everywhere - but this alternative has saved me hundredsThis luxury bag is a 2025 must-have
-
Holly Willoughby's camo mini skirt, khaki tee and stylish hiking boots just perfected 'glamourflage' dressingHolly proved why khaki and camouflage are trends we should be into with in her mini skirt with chunky boots
-
Julianne Moore mastered wearing barrel leg jeans last spring - and her styling trick has never been more relevantA lesson in balancing proportions, this is how to make statement denim look refined and sophisticated.
-
Louise Redknapp's burgundy tights are the between seasons staple for both warmth and trending colourChoosing bolder tights is one of the easiest ways to accessorise in style - we adore Louise's burgundy pair
-
Katie Holmes' waterproof Sorel boots nailed NYC winter - and they're 30% off todayKatie Holmes effortlessly blended practicality and style when she wore waterproof Sorel boots in 2020 and they're now in the sale
-
Helen Skelton's ultra-wide jeans and pastel knitted vest just made the ultimate transitional outfitWith spring weather on the horizon, we're taking note of Helen's statement jeans moment
-
Boden's brand new sheep jumper is a must-have for royal fans - and it's now 20% offThe Heather jacquard jumper pays homage to Princess Diana's most famous look
