The Igloo MaxCold line is the ultimate family for long term cold retention. Rigorously tested to exacting Igloo standards, every single full size ice chest and beverage cooler holds ice for up to 5 days in 90-degree heat. Under similar conditions the personal size products can do the same for 3 1/2 days. Each cooler has the unique, reflective "ice-blue" color. Ultratherm insulation in body and lid keep contents ice-cold.