I have a couple of YETI coolers. They're expensive as hell, but they are really well built and hold the cold far longer than any of the other dozen-odd various brand coolers I own. They are also compatible with dry ice for cooling in them as well. Not all coolers out there can tolerate dry ice, and most of their manufacturers even say not to use dry ice, (so be careful and check before using it in your cooler.) It could destroy it. I can start with frozen food, packed in the cooler with dry ice, and keep it frozen for several days in the Nevada high desert (over 100 degrees F during the daytime).
"Government doesn't have an answer to the problem, government is the problem." Ronald Reagan