ThirdLove

ThirdLove was founded in 2013 by Heidi Zak and David Spector with the goal of reinventing bra shopping through technology, data, and inclusive fit. Recognizing that many women struggled to find bras that fit comfortably, the founders developed the brand’s signature Fit Finder® quiz and introduced half-cup sizing to create a more personalized fit experience. Today, ThirdLove offers an extensive collection of bras, underwear, loungewear, and sleepwear, with bra sizes spanning from AA to I cups and band sizes up to 48, making it one of the more size-inclusive lingerie brands in the market. The brand is especially recognized for its T-shirt bras, wireless bras, and everyday essentials designed with comfort and functionality in mind. ThirdLove has built its reputation around body inclusivity and fit innovation, featuring diverse models and emphasizing that every body deserves well-fitting lingerie. In recent years, the company has also expanded its sustainability initiatives by incorporating responsibly sourced materials into select collections and improving packaging practices.