In support of Oxfam.

Secondhand September is officially underway, and Vestiaire Collective is giving consumers even more of a reason to buy secondhand wares this month with the launch of its second charity sale.

The idea is to encourage people to buy only secondhand clothing throughout the month of September in order to raise awareness about the importance of circular fashion. According to the company, more than 13 million pieces of clothing end up landfill in every week. So, to help encourage secondhand purchases, the site has teamed up with some of the world’s most stylish people who have donated pieces from their own wardrobes for the sale (which is being held in partnership with Oxfam).

Up for grabs are an Yves Saint Laurent blazer from Kate Moss, a Miu Miu skirt from Naomie Harris, a Prada gown from Carey Mulligan, an Isabel Marant jumpsuit from Thandie Newton, an APC suit from Maisie Williams, a Rixo dress from Erin O’Connor and more.

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Carey Mulligan – Prada Mini Dress

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Chloe Sevingy – Miu Miu Dress

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Georgia May Jagger – Alexander Wang Leather Ankle Boots

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Kate Moss – YSL Blazer

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Thandie Newton – Isabel Marant Jumpsuit

Commenting on the initiative, Harris said in a release, “Circular fashion isn’t just about fashion, it’s about protecting the environment and it’s important we do as much as we possibly can to achieve this. Reducing the impact our wardrobes have on the environment can make longterm changes towards a more sustainable future. It’s important everyone plays their part.”

The charity sale is available exclusively through the Vestiaire Collective app and will run from today until September 23. Get shopping here.