ThirdLove is a direct-to-consumer lingerie company based in San Francisco, founded in 2013 by Heidi Zak and David Spector. The brand focuses on providing comfortable and stylish bras that cater to the diverse needs of women. ThirdLove emphasizes body positivity and inclusivity, aiming to redefine traditional lingerie shopping experiences.

The company offers a variety of products, including bras, underwear, loungewear, sportswear, and sleepwear. Notably, ThirdLove introduced half-cup sizes to accommodate a wider range of body types. Their Fit Finder technology helps customers find their perfect bra size through a mobile app and online quiz. Additionally, the Try-Before-You-Buy program allows customers to try bras before making a purchase, enhancing the shopping experience.

ThirdLove has gained recognition as one of the largest online intimate apparel brands in the U.S. and has received several awards for its innovative approach. The company continues to grow by combining technology and customer insights to create lingerie that prioritizes comfort and fit for women of all shapes and sizes.