Thinx

Thinx is a company that produces reusable period underwear designed to serve as an alternative to traditional menstrual products like pads and tampons. The company offers a range of styles, including briefs, boyshorts, and thongs, made from absorbent and leak-resistant materials such as cotton, nylon, and polyurethane. Thinx underwear is designed to hold multiple tampons' worth of menstrual fluid, providing protection and confidence for users during their periods.

The company's products are certified by OEKO-TEX, indicating they are free from harmful substances. Thinx employs various technologies, including moisture-wicking and leak-resistant features, to enhance the performance of its underwear. The brand has gained popularity for its innovative approach to menstrual care and its efforts to destigmatize periods through bold advertising campaigns.

In terms of revenue, Thinx experienced significant growth in the past, reaching nearly USD 100 million in sales in 2021. However, the company's revenue reportedly declined to around USD 60 million in 2024 amid controversies surrounding the presence of potentially harmful chemicals in its products. In January 2023, Thinx settled a class-action lawsuit related to the marketing claims of its underwear, agreeing to pay up to USD 5 million to customers and implement measures to ensure PFAS (per- and polyfluoroalkyl substances) are not intentionally added to its products during manufacturing.

In February 2022, Kimberly-Clark, the consumer goods giant behind brands like Kleenex and Kotex, acquired a controlling stake in Thinx. By the end of 2023, Kimberly-Clark had fully acquired the company in a cash deal worth over USD 230 million, leading to significant layoffs and changes within Thinx's operations.