YETI Tundra 45 Hard Cooler - The YETI Tundra 45 combines versatility with durability. This premium cooler is infused with that legendary YETI toughness — a durable rotomolded construction and up to two inches of PermaFrost Insulation. Which is to say it's built to last and will keep your contents ice-cold even in sweltering conditions， like a triple-digit summer day in central Texas. No bowing， cracking， or melting here.  Extra-thick walls hold up to two inches of insulation for unmatched ice retention Pressure-injected commercial-grade polyurethane foam in the walls and lid makes sure your ice stays ice Rotomolded construction makes it armored to the core and virtually indestructible Heavy-duty rubber latches are made with patented technology so you'll never see another busted latch Molded tie-down slots for easy mounting to your boat， trailer， or truck bed Two hinge pins and interlocking design prevent the hinge from ever breaking A freezer-quality gasket circles the length of the lid to block out the heat and lock in the cold Military-grade polyester rope for extra durability Leakproof， rugged， and designed for quick and easy draining