A zipper pocket is a type of small, usually rectangular or square-shaped pouch that features a zipper on one side. The name comes from the fact that it can be opened and closed like a traditional zipper, allowing you to easily access the contents inside without having to unfasten an entire compartment or flap. Zipper pockets are commonly found on bags, backpacks, purses, and other types of storage containers, providing a convenient place to keep small items such as keys, wallets, phones, or other personal belongings secure while on the go.