The Duchess of Cambridge's sophisticated style [1] has won the hearts of fans the world over. Whether she's headed to a red carpet event or she's out and about on business, Catherine dresses to impress. So it's only natural that she has a lust-worthy list of brands she counts among her favourites. Many of the designers are homegrown (no surprise there) and specialise in structured coats and elegant dresses — designs worthy of the fashionable royal. So which designers are the heavy hitters in Kate's rotation [2]? We rounded up 19 of the duchess's top choices and summarised exactly why we think each made the cut. Read on for the rundown.

Alexander McQueen

While Alexander McQueen's Sarah Burton did design the duchess's wedding gown [4], Catherine also turns to the fashion-world favourite for sophisticated (but slightly less formal) coats and dresses.

Burberry

Come cold weather, Catherine turns to the iconic brand for its signature trenches.

Christopher Kane

When royal duty beckons, the duchess trusts Christopher Kane to deliver fashionable coats that have the queen's approval.

Emilia Wickstead

One of Catherine's favourites is Emilia Wickstead, a brand that offers a number of colourful dresses that the duchess can't help but wear over again.

Erdem

Erdem is one of Catherine go-to designers. From this floral gown to lacy sheath dresses, the brand perfectly aligns with her elegant style.

Goat

Catherine relies on Goat for silky-soft knits and simple dresses and coats.

Issa

Catherine wore this iconic wrap dress from Issa in her engagement photos and promptly started a worldwide obsession for the London-based brand.

Jenny Packham

The duchess counts on Jenny Packham for dazzling red carpet gowns, and she's worn many looks from the designer, more than once.

Jonathan Saunders

It's not often that Catherine opts for a bold print, but when she does, it's an easy guess that her look was designed by Jonathan Saunders.

L.K. Bennett

When the duchess is all business, she wears L.K. Bennett's smart suiting sets.

Matthew Williamson

The designer has been a frequent choice for Catherine for everything from structured daytime dresses to cosy coats.

Max Mara

The Italian brand is known for its plush yet structured coats, and the duchess is a bona fide fan.

Mulberry

If we had to pick Catherine's go-to bag, it would be her tiny navy Mulberry clutch, but the duchess also looks to the brand for flattering coats.

Orla Kiely

When the duchess is in need of a slightly subdued but still chic dress, she turns to Orla Kiely for something to wear.

Reiss

Structured coats and work-worthy dresses are the duchess's favourite picks from Reiss.

Stuart Weitzman

Catherine has worn Stuart Weitzman wedges on many occasions, probably because the shoes are both comfortable and simply stylish.

Temperley London

If you recall any of Catherine's most iconic looks, chances are at least one is from Temperley. The brand's red-carpet-worthy designs fit the royal to a T.

Tory Burch

On more than one occasion, Catherine has chosen Tory Burch's elevated-but-preppy designs.

Zimmermann

When it comes to daytime dressing, the duchess has worn this white eyelet Zimmermann dress twice, and it's easy to see why. The design is sophisticated without ever feeling stuffy.