Abstract: The specification discloses a portable cooler, storage container or icechest, in the configuration of a briefcase or attache case, and the like. The portable cooler, storage container or icechest is defined by outer side, rear, front, top and bottom walls. The outer rear wall has four separately spaced appendages affixed thereon. Separate inner side, rear, front, top and bottom walls are thermally insulated from the outer walls to define a storage compartment. A lid is defined is by outer side, top and front walls separated by an insulating medium from inner side, top and front walls. The lid is designed with a tongue while the storage container has a groove on their respective side and top walls. A hinging means attaches the lid to the storage container on which is also affixed a latching means, again on the lid and another on the storage container. To enable excess accumulation of moisture passage from the storage compartment, a drainage means extends through the cooler side.