I bought two for a week long camping trip in the desert. Unfortunately one them tore a hole when placing it in the cooler (rubbed against the hinge of the cooler lid). It didn't take too much to scuff a hole, then it just deflated from there. Had to survive the week with half of the water. The other one worked well, although knowing it is somewhat fragile, I was very careful with it. Probably great for many uses, but mine wasn't very durable.