Sienna Miller is supporting the Wrap Up Against Poverty auction hosted by Elizabeth Finn Care, a charity which offers financial support to those beneath the poverty line.

Launching on eBay January 26, the event features clothes donated by celebrities and designers including Dame Helen Mirren's Alberta Ferretti coat and an Alexander McQueen suit from Fern Britton. Also showcasing donations from high street stores Warehouse and Topshop, the auction runs until February 26.