After several trial bags, we finally hit upon the right combination of material and design. The final product used in conjunction with bagged ice or our KoolerGel helps to maintain temperatures of 36 to 40 degrees of a harvested animal, which is ideal! We were also fortunate to find a company right here in OKLAHOMA to manufacture the bags. And you Mossy Oak fans will be glad to know that our featured outer shell material is the new Mossy Oak Break-Up pattern. I must tell you, the Trophy Bag Kooler is definitely a must own product no matter where you hunt. When hunting in any region of the United States, you can experience warm weather, so DON’T SPOIL YOUR HUNT KEEP IT KOOL WITH A TROPHY BAG KOOLER!