We started using the fish bags after long range boat trips out of San Diego when we would get back to the dock. No more playing cooler jenga in the truck cab or backseat.Being that the bags are leak-free due to their thermo-bonded hyper-sonic seams meant that we could use these instead of hard coolers. With all the gear you bring on a long range trip (rods & reels, tackle boxs & bags, personal bag) your vehicle is packed to the max and then you have to add the hard coolers. Stuffing them in the cab of the truck or laying seats flat in the car to make the hard coolers fit gets frustrating. We immediately realized we could lay our fish bags flat, taking almost no room at all in the vehicle and once the boat gets back, pull out the fish bags to load the fish or use as a soft cooler after the processor. Problem solved due to leak-free seams!