[Neverfail Hinge System - An interlocking two-pin design that prevents breaking. Interlock Lid System Creates a form-fitting barrier against extreme temps and a freezer-quality gasket that blocks out the heat and locks in the cold. Bearfoot Non-Slip Feet Prevent sliding on the boat or in the backseat. This premium cooler is infused with that legendary YETI toughness — a durable rotomoulded construction Vortex Drain System - Leakproof rugged and designed for quick and easy draining]