Amazing cooler. Took with me on my first camping/shooting trip. Tuesday I tossed a bag of ice, 20lbs in the cooler, nothing else. Opened on Friday morning to find the ice was still 2/3 frozen with some water. Tossed in my food items and another bag of ice, 20lbs. Headed into the hills Friday night. When I was home Sunday evening, I had well over a 20lb bag of ice with some still in the original bag. All food and drinks were cold. This thing works great!