Bison Box Cooler Combo 5L/22L The Bison Box Cooler 5L & 22L Combo is an outdoor cooler set designed to keep food, drinks, and supplies cold and accessible during activities like hiking, tailgating, and off-roading. Key Features Two-in-One Utility: Includes a compact 5L box cooler for quick, short trips and a larger 22L box cooler for group outings. Integrated Cooling: Equipped with a built-in ice pack stored directly in the lid to maximise interior storage space. Rugged Build: Engineered for secure, heavy-duty outdoor use, including off-roading and trail transit