A single-walled disposable cooler can include: a body including a base and a plurality of support walls coupled to the base, the plurality of support walls and the base defining an interior cavity of the body, and the plurality of support walls extending upwardly from the base to form an opening at an upper terminus of the body in fluid communication with the interior cavity; and a lid configured to reversibly couple with the body, the lid shaped to cover the opening of the body. The body can be made entirely of a pulp-based material.