If used together with separately available padlocks, the Tundra is IGBC approved as a bearproof container. The manufacturer doesn't skimp on materials, quality, or cool (pun intended) names of different parts of their products with registered trademarks: - *Doublehaul* carrying handles - *Lipgrip* side handles - *T-Rex* buckles - *Fatwall* structure with more than 3" of insulaion - *Permafrost* insulation - *Interlock Lid* - *Coldlock Gasket* - the same sort of a gasket you'd see in freezers - *Neverfail* hinges are made to last - *Bearfoot* material on the bottom prevents the cooler from sliding around - *Anchorpoint* system for strapping the cooler down - *Vortex* draining hole means you don't have to tilt the cooler for draining