A cooler's one job is to keep things cold. It sounds simple, but it's all about the details. At Bison, we've dedicated ourselves to perfecting the art of the rotomolded cooler. One-piece construction means fewer places for cold air to escape and less chance for a lost or broken part; plus, two-inches of cooler wall insulation means double the ice retention of our competitors. So if you're looking for a portable, premium cooler that gets the details right, your search ends at the Bison 25 qt. coo