Pippa Middleton designs one-of-a-kind dress for charity

Pippa Middleton. Photo: Getty Images.

Pippa Middleton's sold out dress is to be auctioned off for charity.

The 32-year-old socialite - who is the younger sister of the Duchess of Cambridge - is auctioning a dress and scarf, which she designed last year in partnership with luxury fashion brand Tabitha Webb, in aid of the British Heart Foundation (BHF) ahead of its Roll out the Red fundraising ball.

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Pippa wearing the Tabitha Webb she designed. Photo: Supplied.

The Saturdays' Mollie King, who hosted last year's event, said: 'I was honoured to be host last year's Roll out the Red Ball in aid of the British Heart Foundation. It is such a fantastic charity which is very close to my heart as my grandfather sadly died of heart disease.

'The BHF has already made vital discoveries through research in the prevention and treatment of heart and circulatory conditions but there is still so much work to be done.'

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The online auction will close at midnight on Thursday February 11, with the money raised helping to fund research into heart and circulatory disease.

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