These are very multi-purpose! Presumably they are to be used as water resistant bags to carry soiled diapers. However, we use them for all sorts of things; bathing suits, lunches, snacks, etc. - you name it. Water resistant and colorful, they close with a drawstring and toggle. COLOR(s): Red, Purple, and Blue available SIZE(s): Small: 9x12", Medium: 14x18" CARE: Wash these bags in lukewarm water and either hang to dry or dry on air in the dryer. No fabric softeners, chlorine bleach or other whitening agents. FABRIC: 100% nylon.