Ultra-Soft Period Underwear, Hi-Waist Leakproof Underwear for Women, Holds Up to 12 Regular Tampons, FSA HSA Approved Period Panties, Reusable, Comfortable, & Flexible, Black with Lace. 100% Cotton Made in the USA or Imported Hi-Waist Period Underwear for Women: Thinx Ultra Soft menstrual underwear for women features the main fabric made with buttery-soft Cotton – a luxurious blend of SUPIMA Cotton and TENCEL Modal. Perfect for feeling “extra” cozy on your period All-Day Absorbency: Our womens period underwear holds up to 12 regular tampons' worth of flow. The super absorbent core layer can handle up to 3 regular pads' flow and helps provide reliable protection throughout the day Leakproof up to 12 Hours: Thinx period underwear for women, featuring the LeakSafe barrier, helps provide reliable leak protection all day. These period panties are a complete replacement for disposable period products or as a backup to tampons or menstrual cups Comfy & Flexible: Made with comfortable and flexible fabric, Thinx period underwear feels like regular underwear while offering built-in leak protection.