YOYI FASHION Women Breathable Cotton Leakproof Menstrual Period Briefs Panties Multi Pack US Size XXS-XXL/9 100% Cotton Brief:100% Cotton;Water-Resistant Lining:100% Cotton. Breathable, hypoallergenic, moisture-wicking, stretchy, extremely soft and silky. Value Pack of 2 or 3 or 5 Assorted Colors; The quantity show in the picture which is the quantity in the package. The soft, stretchy fibre blend offers all-day comfort! Inner leak-proof lining, excellent for days with menstrual cycle heavy flow, post partum bleeding or urinary incontinence It serves as extra protection from leaks. You need to add the pad/tampon. The underwear protects you if there is an overflow from the pad/tampon. Machine wash/hand wash and air dry. There is special material under the water proof lining. Don't even put them on tumble dryer. That will be damaged.