The exterior of the cooler bags is a heavy coated 600 polyester material.The vinyl liner is produced to provide excellent working properties required for use. The seams will not fail at extended temperatures as well as excellent performance at lower temperatures up to 140 degrees F & still remains pliable at lower temperatures with cold crack of minus 32 degrees F.  Both materials are water-resistant. Both materials demonstrate excellent qualities for durability, longevity & functionality. 

The SGC logo is on both sides of the bag.