When Heidi Zak couldn’t find a quality bra that fit her right and looked great, she realized there was a hole in the market and ThirdLove was born. The data-driven bra company now offers 15 styles in 59 different sizes (they’re the only company to offer half cup sizes!) and provides a “try before you buy” model that encourages women to try the product on in the comfort of their own homes. On this episode Heidi discusses product market fit, exactly how her company collects and uses data to target sales, how to create demand (and a waiting list!), and how their values inform their hiring process. She also reveals the number one platform ThirdLove relies on to track customer service.