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I don't really understand the point of expensive, high end coolers. For just a matter of a few Washingtons, you can get yourself a large styrofoam container that can work just as well if not better than the high end stuff. Our company has a vendor that ships items to us in those containers packed with dry ice. I snagged one and some dry ice from our shipping department once to pick up some ice cream cake for a long haul transport. It worked great. Just for fun, I wanted to see how long the dry ice would stay in the container after I was done. The answer? Over 2 weeks.