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Unsurprisingly, the cardigan swiftly sold out after Kate wore the design, but just weeks later it was back in stock for pre-order - and promptly sold-out once again.
Now the design is available for a third time with a 2021 update, as it’s now available in a range of new colours.
When it first launched, the Abercorn Scallop cardigan was only available in frosted blue or brown.
However, fast forward a few months and it is now available to buy in four trendy (and spring-ready) shades: pale blue, navy, pink and soft grey.
The design has a scalloped trim detail around the neckline, hemmed cuffs and waist, as well as a button front fastening.
The duchess’ layered garment can be worn with jeans, or smart trousers for a more formal occasion, paired with a skirt or over a dress, which makes for a versatile wardrobe must-have.
Buy it: Abercorn Scallop cardigan | £75 from Boden
Watch: Yahoo! Style UK recreate the Duchess of Cambridge’s style transformation over the years