A waterproof bag that allows you to comfortably carry wet items that are difficult to carry around. Since the mouth is rubberized, it opens wide, and even bulky items can be squeezed in and held moderately. It is convenient for carrying a lunch box that you are worried about leaking even on a rainy day, or for taking home a wet towel from the gym or a change of clothes for a muddy child. It's just the right size to carry a lunch box at a convenience store.