Abstract: An ice cooler jacket system including a one-piece composite material formed with an interior flexible fabric and an exterior flexible fabric and with thermal insulation material therebetween. The composite material includes a plurality of panels. A central rectangular back panel is provided with two long edges and two short edges sized to fit over the back of a cooler. A generally rectangular top panel is integrally formed with one long edge of the back panel to fit over the top of the cooler. A bottom panel is integrally formed with the other long edge of the back panel with two trapezoidal panels extending outwardly from the bottom panel with rectangular apertures adjacent to the central extent thereof for the passage of a drain tube of the cooler.