The Duchess of Cambridge shows us how to stay stylish even in the cool temperatures. Want to know exactly what's in her wardrobe this season? Click through for our gallery of all her fall-winter looks!The holiday gave Kate a reason to step out in style! The Duchess attended the Christmas service at St. Marks church in a recycled Celeste coat by Hobbs. Kate accessorized the coat with more than the faux fur collar. The Duchess looked chic as she carried one-year-old Princess Charlotte on her hip as well. Photo: Andrew Matthews PA Wire/PA Images
With less than a week until Christmas, the Duchess showed off her holiday spirit donning a festive red and green floral-print jacquard dress by Vanessa Seward. Kate accessorized the look for the Heads Together Christmas party with a McQueen glossed-leather belt and black suede Gianvito Rossi pumps.Photo: Samir Hussein/WireImage
Kate Middleton traded her tiara and gowns for a more casual, albeit chic look for her December meeting with cub scouts. The royal, who has previously worked as a volunteer with a cub scout pack, wore a grey cashmere turtleneck sweater by Iris and Ink, which she paired with dark trousers and her trusty Really Wild Clothing Spanish Boots for the outing. The royal accessorized the outdoorsy outfit with a Cubs 100 scarf around her neck.Photo: Stephen Pond/Getty Images
The British royal looked elegant on November 22, donning a blacksatin midi dress by Preen, which features an asymmetric neckline, to the 201 Place2be Awards in London. Kate completed her evening look wearing her tresses up in a half-up 'do and accesorizing the frock with a Temperley London crystal bow belt and suede Prada pumps.Photo: Eamonn M. McCormack/Getty Images
Kate Middleton looked effortlessly chic stepping out to the Natural History Museum in London. The Duchess wore a key-hole detail dress by L.K. Bennett for an afternoon of dinosaur activities with schoolchildren. Prince George's mom accessorized her silk midi dress with grey pumps and wore her glossy locks down.Photo: Yui Mok PA Wire/PA Images
Kate stunned at the premiere of A Street Cat Named Bob donning a winter white dress by Self-Portrait, which featured a pleated skirt and long-sleeves. The Duchess completed her look wearing her glossy tresses down in loose waves.Photo: Ian West / PA Wire/PA Images
This office-ready look was for the day the Duchess became editor-for-a-day of the Huffington Post UK. She's wearing the vintage-inspired $170 Vinnie blouse from Reiss and a black-and-white wrap skirt from Dolce & Gabbana.Photo: Getty Images
Kate may have her pick of the world's most famous designers, but the Duchess of Cambridge shunned the big names to wear this outfit created by a lesser-known British label. The royal wore a red-and-white tweed checked skirt and top suit from Epinone as she visited a charity in London.Photo: Getty Images
Here, Kate's green tailored Sportmax coat is worn a black turtleneck, one of the Duchess' wardrobe staples. The coat is one of her most-worn wardrobe items, and she also donned it for an outing on Christmas Day last year. Photo: Getty Images
Kate paid tribute to Scotland when she headed up to the country's capital of Edinburgh, wearing a kilt by a new Scottish designer, Le Kilt.Photo: Getty Images
The Duchess showed you don't need a lavish budget to look stylish when she stepped out wearing an $86 department store dress. Carrying out an official engagement in London, the royal wore print dress bought from British department store Debenhams. The chic piece comes from designer Jonathan Saunders' EDITION collaboration with the department store.Photo: Getty Images
The pretty brunette looked as stylish as usual in her ski gear. Her form-fitting white jacket is from E and O, a British brand founded in 2008, and she's also wearing bright red ski pants by label. Kate's goggles, meanwhile, are by UVEX, and she's sporting weatherproof boots by Sorel.Photo: Getty Images
The royal showed off her athletic physique in a Nike top, Asics sneakers and Monreal London track pants as she joined British tennis star Andy Murray's mom, Judy Murray, at a Tennis On The Road workshop in Edinburgh.Photo: Getty Images
Here the royal is seen wearing her signature black pumps and a cheery dress by British designer Emilia Wickstead, a label that Duchess and her sister Pippa Middleton have worn several times. Photo: Getty Images
The Duchess of Cambridge looked chic and festive on Christmas Day, wearing her long belted green coat by Sportmax as she made her way to church services with Prince William.Photo: Getty Images
When it came time to fulfilling her new role with the Air Cadets, the Duchess of Cambridge opted for a recycled piece from her wardrobe for the occasion, bringing back her pale-blue Alexander McQueen coat.Kate accessorized with a pair of navy-blue Gianvito Rossi pumps, and wore her brunette tresses down, adding a chic black hat from Lock & Co.
For a Christmas party at a local charity, Kate brought out a red pleated Alexander McQueen dress which she has previously worn twice before. Photo: Getty Images
It was time for her trusty LK Bennett power suit during brokerage firm ICAP's annual Charity Day in London.Photo: Getty Images
For an engagement in London the royal trendsetter wrapped up against the chill in a $620 houndstooth coat by Reiss. Photo: Getty Images
Kate rewore on of her favorite Matthew Williamson dresses to attend the Place2B headteacher conference.Photo: Getty Images
Despite the cold weather, the Duchess stepped out wearing a gorgeous a cobalt blue Saloni crinkle-effect dress to present awards at the annual Fostering Excellence Awards in London. Photo: Getty Images
The mom-of-two looked sophisticated in a black lace number to attend the annual Festival of Remembrance commemorating fallen soldiers and their families. Photo: Getty Images
The Duchess looked dazzling in a floral evening dress by British brand Erdem, setting off the look with earrings that belonged to Queen Elizabeth's mother.Photo: Getty Images
Accessory fans take note: the royal brunette accessorized her grey Orla Kiely dress with black suede Jimmy Choo pumps, Links of London 'Hope Egg' earrings and a black Mulberry clutch. Photo: Getty Images
Designer Jenny Packham was again in the spotlight when Kate wowed in this powder blue transparent evening gown on the London red carpet for 007 movie 'Spectre'. Photo: Getty Images
For a screening of children's film 'Shaun The Sheep: The Farmers' Llamas', Kate got in touch with her playful side, rocking a space-themed dress by Tabitha Webb. Featuring three-quarter-length sleeves and an A-line skirt, the designer number has a price tag of $750.
Photo: Getty Images
Photo: Getty Images
The Duchess really loves a tailored blue coat! During a visit to Dundee, Scotland, she paid tribute to local talent by wearing this design by homegrown label Christopher Kane. Photo: Getty Images
Scoring serious style points, Kate went for an Italian luxe label, wearing an eggplant Dolce & Gabbana guipure lace dress which is priced at $3,495. Photo: Getty Images
Prince George's mom wore a stunning red haute couture Jenny Packham gown to attend her first ever official state banquet. The 33-year-old accessorized her outfit with the Lotus Flower royal heirloom tiara.Photo: Getty Images
To attend an event for World Mental Health day, the mom-of-two recycled one of her favorites, the Tory Burch geometric print 'Paulina' dress, which has been in her wardrobe since last year. Photo: Getty Images
Keeping her accessories simple, Kate stepped out for the September opening ceremony of the rugby World Cup wearing a single-breasted royal blue Reiss coat.
Photo: Getty Images
Photo: Getty Images
Continuing her royal duties, the Duchess visited a women's prison wearing this creation by little-known London-based label The Fold. The tailored pale grey dress, called 'The Eaton', features long sleeves, a V-neckline, a peplum bodice and a pencil skirt. It is priced at £365, or around $550. Photo: Getty Images
Kate Middleton always looks fabulous – so we're taking some inspiration by peeking into her fall 2015 wardrobe. From off-the-rack finds to haute couture dream dresses, here's what Kate's wearing this season. Returning to work in September for her first official engagement since the birth of Princess Charlotte, Kate was office ready in the houndstooth print 'Austin' shirtdress by Ralph Lauren, which has a pricetag of $1595. Photo: Getty Images