A BAG is an item of clothing or a container used to store and carry items. The term 'purse or backpack' refers to two types of bags that are commonly used for carrying items. A purse is a small BAG with a handle, usually made of fabric or leather, and is used to store and carry personal items such as money, credit cards, and keys. A backpack is a larger BAG with two straps that can be worn on the back, and is typically used to store and carry items such as books, laptops, and other supplies. Both purses and backpacks are popular choices for carrying items, and are available in a variety of styles and colors.