We use this for 3 day outings, place it in the shade 2/3+ full of ice only on the 3rd day does it start to melt down. Still ice 4th day. The other reviewer only put 1/3 of a bag in? On any ice chest there must be over half filled with ice to keep it cooler longer. Our ONLY problem with it was the telescoping handle broke after only 2nd use. It will not pull out on both sides. something wrong with the little release and hold buttons on the sides of the handle. The thumb button on top of handle depresses but does not make it telescope effectively.