Colorado State Rams From lunches to tailgates, this Colorado State Rams cooler backpack is a must-have. ThermoGuard insulation in bottom compartment Heat-sealed, water-resistant lining Shoulder straps with air mesh design Zipper closure FABRIC & CARE Polyester, polyvinyl chloride Spot clean Imported 19" x 8" x 11" Size: One Size. Color: Black. Gender: unisex. Age Group: adult.