Fashion-forward actress Sienna Miller is giving fans the chance to emulate her style by selling off key pieces from her wardrobe for charity.

The Alfie star, who has been named one of the world's most fashionable celebrities in the past, is auctioning off her clothes and accessories on Hardlyeverwornit.com to raise funds for good causes.

Items on sale include sunglasses, belts, hats, jeans and dresses.

Proceeds from the auctions will go to a number of charities.