A stampede of style-conscious parents could be set to hit Primrose Hill high street later this week – as designer clothes worn by Victoria Beckham’s daughter go on sale at a charity shop.

From 10am on Thursday, Mary’s Living and Giving Store will be selling 25 outfits straight from three-year-old Harper Beckham’s wardrobe in aid of Save the Children.

With both Beckham parents enjoying a global reputation as style icons, Harper has gained somewhat of a following as the most fashionable baby around town.

Items on offer include her inner and outerwear, from designers such as Chloe, Roksanda Ilincic, Ralph Lauren, Stella McCartney, Gucci, Marc Jacobs and Charlotte Olympia.

Victoria Beckham said: “I am delighted to be supporting the wonderful work of Save the Children through the Fashion Saves Lives Sale.

“As a mother, I passionately believe that all children, wherever they live, have the right to a happy, healthy life. Everyone out there can do their part by purchasing or donating, ensuring children all around the world have the opportunity of a brighter future.”

All the money raised at the charity shop - run by retail guru Mary Portas - will go to the Save the Children Fashion Saves Lives campaign to end child deaths from preventable causes by 2030.

Currently 17,000 children die every day from preventable causes such as pneumonia and malaria due to a lack of adequate health services, the charity says.

Save the children is backing a campaign to ensure that at the UN summit in September world leaders make a commitment to ensuring that by 2030, every child has the basic healthcare that they need to survive.

Fronted by Save the Children ambassadors Erin O’Connor and Mary Portas, other donated items will be sold on the Mary’s Living and Giving eBay store for a ten day period from June 18 to 28.

Other celebrity donors include Kate Moss, Jade Jagger, Mel C, Fearne Cotton and Alex Gerrard.

Visit savethechildren.org.uk/fashionsaveslives to see the items once they go on sale.