A small bag designed to be worn across the body, with a single strap that loops over one shoulder and across the chest or back, is a specific type of carrying accessory. These bags are often smaller than backpacks, offering a compact and convenient way to carry essential items. For example, an individual might use this type of bag to hold a wallet, phone, keys, and a small water bottle while running errands.
The popularity of this accessory stems from its practicality and ease of use. It allows for hands-free movement and quick access to belongings, making it suitable for various activities, including travel, hiking, and everyday commuting. The design evolved to meet the need for a more streamlined alternative to traditional backpacks, providing a balance between capacity and portability. Early versions were often utilized by messengers and cyclists who required easy access to their items while on the move.