Thinx is a New York–based company that sells period underwear, an undergarment designed to be as absorbent as traditional feminine hygiene products. Since 2022, Kimberly-Clark has had a majority stake in the business.
History
Thinx was founded in 2011 by Antonia Saint Dunbar, Miki Agrawal, and Radha Agrawal.[1] In 2018, Thinx released a new line called (BTWN), which offers period underwear for teens and tweens.[2] In June 2019, Thinx released Thinx Air, a quick-drying version of its underwear.[3] As of 2021, Thinx has released its first activewear collection, which includes leggings, cycle shorts, training shorts, and leotards that are available in multiple colors. The four-piece collection functions like other Thinx underwear, but the gusset design is longer and shaped differently to accommodate active lifestyles.[4]