There's nothing more refreshing than seeing a royal who isn't afraid to wear an item on numerous occasions. The Duchess last wore this Barbara Casasola number at the 2016 for the Art Fund awards.
The Duchess takes the army's salute in a lovely Catherine Walker coat dress, which she paired with matching clutch and shoes.
Kate showed the Americans how it is done in a white gown by Alexander McQueen, the same designer who created her iconic wedding dress.
When in the presence of the Queen it is pretty important to wear your Sunday finest. For the occasion, the Duchess sported a pink coat dress by Alexander McQueen and a fascinator by Juliette Botterill.
For the Chelsea Flower Show the Duchess of Cambridge wears a whimsical dress from British label Erdem.
The Duchess of Cambridge wore the matching blazer and skirt combo to The Royal Foundation's Mental Health in Education conference.
The royal stunned in a white McQueen gown for the 2019 BAFTA Awards.
Kate turned heads in this Eponine London dress for Children's Mental Health Week.
The royal looked fabulous in a tweed jacket and boots at Islington Community Garden.
The royal looked gorgeous in a Q by McQueen green and blue tartan coat dress in Dundee, Scotland.
The royal isn't afraid to rock a bold shade, like this pretty magenta she wore to The Royal Opera House.
Kate was all smiles as she watched a flypast to celebrate the centenary of the Royal Air Force.
The mother of three stunned in this number for the Family Action Charity.
Next to Meghan Markle's royal blues, the Duchess of Cambridge's monochromatic ensemble makes a major impact.
The mother of two takes a stroll with Prince William in a coat dress, matching hat and black pumps.
Kate is giving us major holiday fashion inspo in this green and white L.K. Bennett polka dot dress paired with a khaki clutch and matching heels for a visit to Evelina London Children's Hospital.
The Duchess looked like a real-life Cinderella at a diplomatic reception in this sparkly Jenny Packham gown that featured sheer cap sleeves and clusters of sequins.
For an official visit to RAF Akrotiri, Kate rocked a business-casual look that included a forest green Smythe blazer paired with navy trousers and a white shirt.
Kate hosted a holiday party in this festive plaid Emilia Wickstead skirt paired with a black Brora cardigan and slouchy black high-heel boots.
The Duchess visitsed UCL Developmental Neuroscience Lab at UCL London in a burgundy Paule Ka blazer and skirt paired with a black turtleneck, tights and heels.
Kate stunned in a chic blue coat dress that featured a belted waist, button detailing and a collar paired with matching navy pumps and a black clutch to open the McLaren Automotive's new Composites Technology Centre.
Kate attended the Remembrance Day service in a dark green coat with button detailing and a velvet trim collar, cuffs and pockets, and paired it with a fuzzy headband and carried a black clutch.
For the Tusk Conservation Awards, Kate wore her aquamarine Jenny Packham gown (a stunning look she's worn before) paired with diamond chandelier earrings, a matching clutch and Jimmy Choo pumps.
The Duchess of Cambridge arrived at Imperial War Museum in a fitted blue sheath dress, nude heels and a matching nude clutch.