When I bought the 50 QT Extreme Cooler with a 5 day, under 90* claim, ice lasted 24 hours. After inserting a Styrofoam Cooler inside, still most ice gone in 24 hours. Average temperature: 70*.  This is ridiculous. Even with foil insulating bubble wrap added. NO IMPROVEMENT. The lid is a farce. Might as well leave it open.