Uncompromising compactness, astonishing cooling power that defies common sense. ● The outer fabric uses waxed cotton canvas. You can enjoy a more profound expression the more you use it. ● A roll-top cooler with simple opening and closing and fine size adjustment. ● The fasteners are durable metal hooks. ● Tall enough to stand 500ml PET bottles upright. ● The inner material uses high-quality TPU liner, the same material used in waterbeds and pools set on the ground. ● The internal insulation uses 1.9cm thick, high-density closed-cell foam. ● Due to the combination of materials, it exhibits astonishing cooling power, maintaining ice for approximately 24 hours in an outside temperature of 49°C, depending on the size. ● With its simple design, it's a soft cooler that can be used not only outdoors but also in various situations. ● 5-year warranty for products where water leakage caused by material/manufacturing is recognized. [Size] Width 22 x Height 25 x Depth 18cm [Weight] 550g [Capacity] 5.7L [Materials] Waxed cotton, nylon, polyethylene, polyester, thermoplastic polyurethane, polyurethane, zinc alloy