The YETI Ice - 1lb is filled to the brim with science, dialed in to the most effective temperature to maximize the ice retention of any cooler, with a durable design that is break-resistant. Its custom shape reduces freezing time and multiple size options mean that you can outfit everything from your Hopper® Flip to your Tundra 350 with YETI Ice. It works as an ice supplement, a welcome addition to your ice stash to make sure your contents stay colder for longer.