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 big cooler that gets the details right, your search ends at the Bison 25 qt. cooler. Built tough to withstand drops, falls, and spills, it’s the perfect sidekick for any activity, holding up to 21 cans or 32 lbs. of ice.