Bamboo Viscose Fiber Brief Menstrual Leakproof Panties Multi Pack US Size XXS-3XL/10 Underwear materials:95% Bamboo Viscose Fiber and 5% Spandex;Waterproof fabric materials:82% Bamboo Fiber and 18% Polyester Value Pack of 2 or 3 or 5 Assorted Colors. The quantity show in the picture which is the quantity in the package. Pull on closure. Seamless,High elastic and comfortable,breathable for day and night Great protection for women and girls during their menstrual cycle, excellent for days with menstrual cycle heavy flow, post partum bleeding or urinary incontinence!Our Leak proof Protection Makes You Worry-Free!It serves as extra protection from leaks. You need to add the pad. 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.