ONE OF A KIND Custom Yeti Cooler with ORGINAL Art Work from Paul Puckett. The YETI® Tundra was designed specifically with the Boating community in mind so your YETI doesn't end up overboard. And like all YETI coolers, the Tundra is built to last trip after trip, with the same rotomolded polyethylene construction used to make whitewater kayaks. Up to 3 inches of PermaFrost™ Insulation and our ColdLock™ Gasket mean you won't have to constantly top it off with ice. Which is good, because you don't pass too many convenience stores on the river.