What is the best cooler under $100 for keeping ice for a few days?

The Igloo BMX 25 is your best bet. It keeps ice for two to three days, has a thick rubber latched lid, and more insulation than average cheap coolers. For the price, it’s the sweet spot. If you can stretch your budget by thirty bucks, the Ozark Trail 26-quart rotomolded from Walmart holds ice for days.