Thinx air underwear, Small, NEW condition. Light absorbency holds 2 regular tampons' worth. Orig. $35/ea. I have four total available. This listing is for Two (2) Thinx air Bikini ($18/ea.). I have a separate listing for Two (2) Thinx air Hiphuggers. From Thinx website: Our best-selling style — designed with ultra-thin micromesh to keep you cool, fresh, & dry on light to moderate flow days. Thinx underwear is not made or treated with PFAS. Absorbency and size chart attached. Thanks for shopping!