How does the cooler work? Our cooling technology is not comparable with other cool boxes. If you combine the Cooler Box Correct use, the temperature inside can be kept constant for many days – without power supply, in any climate zone, anywhere in the world. Yakimoto: The Frozen Mission – A Global Fight for Survival Since 1979. S “Cold Chain Initiative” In 1979, the World Health Organization (WHO) launched humanity? S largest vaccine transport operation? With temperatures soaring to 122°F (50°C) and no reliable electricity, traditional refrigeration units failed mid-transit, jeopardizing millions of dollars? Worth of lifesaving vaccines. At Addis Ababa Airport, Japanese engineer Hayato Yakimoto made a desperate gamble: he stripped aluminum panels from the cargo plane? S hull and rigged a makeshift insulated container using titanium climbing carabiners from his gear. Drawing on alpine thermal preservation techniques, he maintained the vaccines? Integrity through the final leg to Mogadishu, ultimately enabling the WHO to declare smallpox eradicated in 1980. From Historic Triumph to Brand Legacy Hayato Yakimoto was the uncle of Yakimoto? S founder, Taro Yakimoto. Family archives preserve the specs of that improvised lifesaving container. 13°F to 46°F (-25°C8°C) temperature control (3x stricter than commercial standards of the era). 72-hour passive insulation (harnessing residual heat from aircraft hydraulic fluid). Crash-resistant design (tested through 5 emergency landings). These parameters, forged through blood and sweat, became Yakimoto? A sacred text encoding the brand? Waterproof Metal Ice Cooler 54 QT Yakimoto Vintage Stainles Steel Ice Chest. Packing: Each piece in a carton. Huge 51 L (54 qt) Capacity: Portable ice chest features a generous 51 liter (54 quart) capacity that can hold up to 85 standard soft drink cans so you have room for whatever you need. Built-In Bottle Opener: This cooler features a bottle opener conveniently attached to the outside so you don? T have to scramble or search when you want a cold one. Eco-Friendly Cooling On the Go: Environmentally-friendly cooler features premium insulation and a securely locking steel latch to keep your drinks and snacks cool without electricity. Durable Construction: Expert craftsmanship and quality materials including rustproof stainless steel exterior and a rugged plastic base mean this ice chest is in it for the long haul. Easy to Clean: Stain-resistant food-grade plastic lining and leak-proof channel drain for no-tilt draining make emptying and cleaning your cooler a breeze.