IsoTech insulation structure provides superior temperature retention. IsoTech layers consist of woven fabric outer material, PVC, 6 mm closed cell polyethylene and leak proof lining. In a controlled setting of 22C, the inside temperature of this Thermos cooler remains at or below 10C for 18 hours, temperature results will vary based on conditions. Holds 24 12 ounce cans with room for ice. Heat sealed. 100% leak-proof lining. Includes bungee cord for added storage. Quick access lid panel provides easy entry.