"&SISTERS nüdie period pants are the zero waste alternative to traditional pads & tampons. Designed by female architects to be comfy, discreet & leak-proof, each pair holds up to 4 tampons' worth. Suitable for use either day or night.  Made from 100% hypoallergenic organic cotton, the nüdie period pants help to save  ~400 disposable products from ending up in landfill.  Why go nüdie? ✓ Zero chemicals. Zero pesticides. Zero toxins.  ✓ Made from 100% organic cotton: hypoallergenic & breathable ✓ Wear for up to 10 hours - absorbs up to 4 tampons! ✓ Reusable for up to 100 washes. How Do Period Pants Work? ✓ Super absorbent nüdie reusable period pants with three organic cotton layers designed using 3D textile fabrics to give you the ultimate protection.  ✓ Breathable, hypoallergenic top layer helps maintain the natural pH of the vagina. ✓ Super absorbent middle layer absorbs menstrual fluid. ✓ Waterproof under layer offers anti-leak protection to stop the dreaded leak. How Absorbent are Period Pants? ✓nüdie pants absorb the equivalent of up to 4 tampons each. ✓ Ideal for light to moderate flow making them perfect for all but your heavy flow days.  ✓ Suitable for use day and night.  How do you wash period pants? Wash before use.  After each wear, rinse your period pants with cold water and then wash by hand or machine wash at less than 40°. Do not use fabric conditioner, bleaching agents or a tumble dryer as this will cause deterioration in absorbency. They can be placed in the washing machine with other garments! Note: our sizing is cosy so we do not recommend sizing up as it is important your period pants fit well to ensure they remain leak proof.  "