Demand for Kate's polka dot dress crashes designer website

In May of last year, the Duchess stepped out at the Olympics gala swathed in a stunning teal floor-sweeping number by the brand

Within hours of Kate Middleton stepping out of the Lindo Wing cradling her newborn baby wearing their polka dot dress, Jenny Packham's website crashed under the weight of traffic

During her North American tour back in 2011, Kate stepped off the plane in Calgary wearing their canary yellow sundress

William and Kate made their debut public engagement as a married couple, attending the ARK gala with Kate wearing a dazzling pale pink Jenny Packham gown

She cheered on her husband at the polo in Santa Barbara wearing one of her hand-painted floral frocks

She even incorporated Jenny Packham into her maternity style, accentuating her baby bump in a bespoke silk shantung coat and daisy lace dress to attend a special service marking the 60h anniversary of the Queen' coronation