This is it, the entry-level ICEMULE Proâ„¢ backpack cooler, clocking in at 23 liters of beer haulin', ice-keeping performance. The Large Pro can easily load up with 18 cans + ice, making it ideal for a day on the boat or a tailgate before the game. No other soft cooler out there is easier to carry, easier to load up and easier to unload.