The Duchess of Cambridge is known for her elegant-yet-practical style, and because of the huge influence she has given to the fashion world, people are always on the edge on what she will wear next.

For her formal gatherings and appearances, Middleton is known to sport knee-length dresses and heels, some of which get sold out days after seen on the Duchess' ensembles. Middleton recently wore a red cat by one of her favorite designers, LK Bennet in Copenhagen, the same brand that made her famous and frequently-used nude heels.

LK Bennet Army Burgundy Coat Source: What Kate Wore
LK Bennet Nude Heels

The Duchess also fancies knee-length dresses, especially when she's seen out with Prince William. Some stand outs were the floral and yellow Jenny Packham Spring 2011 dress she wore during her North American tour, as well as the green Diane Von Furstenburg dress she donned twice for separate appearances. Middleton is also known to be a big fan of Canadian designer Erdem, wearing two dresses from the designer in several public gatherings.

Jenny Packham Floral Dress Source: LA Times Blog
Erdem Blue Lace Dress
Diane Von Furstenberg Green Dress Source: TheFashionPolice.net

For her accessories, the Duchess likes to keep it simple with hand-held clutches and glamorous-yet-simple jewelry. For one occasion, Middleton was spotted holding a Wilber & Gussie envelope clutch for a charity event. The bag was also seen clutched on her sister Pippa's hand at a different event, proving that sisters do indeed borrow fashion items from each other. Middleton also fancies the brand Longchamp, and is said to have many versions of the bag in different sizes and colors, with the hue navy blue as her favorite.

Wilber & Gussie Clutch
Long Champ 'Le Pliage' Tote

View the slideshow to see The Duchess don some of these items and other favorites of hers.

Visit the following links to find out where to get these fashionable princess-worthy picks:

LK Bennet

Diane Von Furstenberg

Erdem

Longchamp

Wilber & Gussie

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Harper's Bazaar Votes Kate Middleton Britain's 'Best Dressed' Woman [PHOTOS]