Abstract: A collapsible cooler has provisions for erection and retention in a common receptacle such as a five gallon bucket, a tall kitchen garbage can and a large garbage can. Three layers of sheet material form an insulated cylindrical liner with a diameter and height corresponding to the dimensions of the common receptacle, with downwardly depending overhanging panels that extend over the upstanding walls and fold down and are secured together to hold the liner in the common receptacle. The downwardly depending overhanging panels have provisions for engaging structural elements of the common receptacle to secure the liner to and within the common receptacle. Accessory retention pockets are secured to the downwardly depending overhanging flaps and are accessible even when a lid is applied to the top of the collapsible cooler. The downwardly depending flaps have provisions for displaying indicia, logos and emblems.

Abstract: A collapsible cooler has provisions for erection and retention in a common receptacle such as a five gallon bucket, a tall kitchen garbage can and a large garbage can. Three layers of sheet material form an insulated cylindrical liner with a diameter and height corresponding to the dimensions of the common receptacle, with downwardly depending overhanging panels that extend over the upstanding walls and fold down and are secured together to hold the liner in the common receptacle. The downwardly depending overhanging panels have provisions for engaging structural elements of the common receptacle to secure the liner to and within the common receptacle. Accessory retention pockets are secured to the downwardly depending overhanging flaps and are accessible even when a lid is applied to the top of the collapsible cooler. The downwardly depending flaps have provisions for displaying indicia, logos and emblems.