I bought this cooler to fit between the front seats of my work van, and it is perfect. A 7# bag of ice keeps my drinks cold all day, even with with it sitting in a hot van for 12-15 hours a day.
If I had one wish, it would be for Mammoth to make a drain plug that has a long drain hose that I could run to my door jamb. This would allow melted ice to drain without having to take the cooler out.
If anyone happens to to drive a Transit style van, and is looking for a cooler to keep in it, the Mammoth 25 is perfect!