A tank bag is a type of storage accessory designed for motorcycles. It attaches securely to the fuel tank, providing easy access to essentials like maps, phones, and tools while riding. Most tank bags come with magnetic or strap systems to ensure stability and safety during travel. These bags often feature transparent pockets for navigation devices and are made from durable, weather-resistant materials. Some models include additional compartments and can be expanded for extra storage. Tank bags are popular among riders for their convenience and ability to keep important items within reach without taking up space on the bike.