STEELE THERMAL PACK 3PCSteele® Thermal Packs are built to U.S. Military specifications to provide lasting cooling. They're easier than ice packs and completely reusable... making them ideal for cooling overworked muscles or as a no-mess way to keep bait, food and drinks or anything else chilled in a cooler. New U.S. Military issue. Will not leak or run like ice does. Stays cold longer than ice.