Sienna Miller and Melanie Chisholm are among the stars who have raided their closets for a charity auction.

The Alfie star has handed over a vintage kimono to the Celeb Wardrobe Raid 2013 sale in aid of Kids Company, an organisation which helps at-risk children in the U.K. capital.

Former Spice Girls singer Chisholm, celebrity chef Nigella Lawson and British DJ Fearne Cotton, who gave birth to her first child on Thursday (21Feb13), have also donated items to the auction.

The sale begins on website HighFashionSociety.com on Monday (25Feb13) and ends on 17 March (13).