Bests & Worsts Reviews from Amazon

I bought this product specifically for a automotive trip I was taking over a three day period. I kept the cooler in a refrigerator for two days at 37 degrees prior to loading it. I put 2 frozen Yeti ice packs in the bottom of the cooler, loaded it with 8 bottles of water which were chilled to 37 degrees. I then packed in 4 frozen bottles of water into the spaces between the chilled bottles. Now I admit that this does not follow the product instructions for “two-to-one” ice to beverage loading but, if I did that there wouldn’t be hardly any room for beverage. The cooler never left the car interior for 56 hours where the ambient temperature was 72 degrees all but nighttime hours when it was high 70’s. It was only opened for 30 seconds at a time to remove two bottles of water. After 56 hours the frozen packs were all thawed and just cool. This cooler is no better than other coolers that cost 70% less. It is also much heavier and difficult to unzip the opening. A complete waste of money.