Pippa MiddletonFameFlynetUK/FAMEFLYNET PICTURES; Courtesy Photo

Pippa Middleton believes in fashion for a cause! Last night, the royal-in-law attended the Waitrose summer party at London’s Natural History Museum wearing a pink floral dress by Tabitha Webb, a piece the designer created to raise money for Fashion Targets Breast Cancer. The blossom-covered design launched exclusively on my-wardrobe.com last month with 30% of each sale going directly to the charity, an initiative started by the CFDA Foundation to raise awareness and funds to provide more resources, education, and health care to those affected by breast cancer. “To work with a charity that touches so many women throughout their lives is an honor,” Webb said of creating the look. The dress was on sale for $392 at my-wardrobe.com—but it immediately sold out when Pippa wore it, a spokesperson for the site told InStyle.com. Pippa power prevails!

Plus, see more Pippa outfits.

Pippa Outfit Photos!

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