Say goodbye to the discomfort of bulky pads and tampons, and hello to the revolution of period panties! Product Features Material - Innermost Lining - Anti Microbial Fabric. Stretchable Cotton Lycra Pattern - Hipster Texture - Combed cotton. Special Features 3rd Party Lab Tested for PFAS and Phthalate only. Comfortable to be worn while sleeping, travelling, playing sports and unsure period dates. How To Use / Wash You can wear them normally like underwear. Rinse the underwear with cold water. Machine wash post-rinsing out menstrual fluid or hand wash like regular underwear. During heavy periods, it is advisable to change your panties more than once a day. Disclaimer Safety Claim is based on sample Period Panties testing free of PFAS and phthalate only. We do not make any all-encompassing safety claims for parameters we have not tested or are unaware of.