Unlike the typical cooler, the Qool Box relies on vacuum insulation, much like a thermos. The Qool cooler also ditches the bagged ice for special frozen inserts formulated to keep contents cold (or ...
Vacuum-insulated coolers have been emerging on the market over the past few years, among them the precision-temperature Qool Box and the adjustable-zone Dam Cooler. Norwegian startup Oyster puts its ...