Five copies of Duchess Kate's sold-out engagement dress released

Britain's Prince William and his fiancee, Kate Middleton, pose for photographers during a photocall to mark their engagement, in the State Rooms of St James' Palace, central London, on Nov. 16, 2010.

/ BEN STANSALL/AFP/Getty Images

(CBS) Everyone remembers the navy blue dress Kate Middleton, now Duchess of Cambridge, wore at the announcement of her engagement to Prince William that sold out within 24 hours of her wearing it.

Well now the popular British brand Issa, who designed the dress, has decided to re-release five copies of the popular frock, according to British Vogue.

Pictures: Kate Middleton 

The dress, which retails for ?475 ($745), not only sold out instantly, it also spawned tons of knock-offs. Now, Issa has decided to produce the dresses exclusively for "Online Fashion Week," and the dresses will be available from the U.K. website, Selfridges.

British Vogue is launching the first ever "Online Fashion Week," which started Dec. 5 and ends Dec. 9. Other brands that are releasing limited edition exclusives on Selfridges include Victoria Beckham, YSL, Rag & Bone and more.