Chicago – October 06, 2026 -- Thinx is launching Butterfly Shorts, a new period underwear style designed to be worn as visible athleisure rather than hidden undergarment, available starting today at Thinx.com for $56.
The shorts offer leakproof protection for up to 12 hours
Butterfly Shorts feature Coolcore breathable mesh fabric and an absorbent gusset built for overnight use. They come in sizes XS through 4X and are marketed for activities like workouts, travel, and daily errands.
The style builds on an existing teen product
Thinx previously offered a Butterfly Shorts style for teens, and this launch extends the same design -- combining protection, comfort, and wearability -- to an adult audience.
Thinx positions the product as a shift away from traditional period underwear
Nicole Pawlukowsky, vice president of Thinx, said the brand aims to bring trusted protection into athleisure, calling it a way to feel "comfortable, confident, and ready for whatever the day brings." The company describes the launch as part of a broader effort to rethink period care beyond the underwear drawer.
Thinx markets itself as the top-selling reusable period underwear brand based on grocery, drug, mass, and dollar store unit sales over the 52 weeks through September 5, 2026.