Heidi Zak

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Heidi Zak is the co-founder and co-CEO of ThirdLove, with the mission of building a better bra, and has been named among Fortune’s 40 Under 40. Since 2013, more than 12 million women have used ThirdLove’s innovative Fit Finder™ to find a bra in one of the brand’s 74 sizes, including exclusive half-cups. Prior to launching ThirdLove, Zak was at Google, Aeropostale, McKinsey, and Bank of America. Follow her on Instagram at @heidi.