Coleman Xtreme® coolers are designed with premium insulation technology which keeps the contents cold on ice for days. These coolers are perfect for long road trips, days spent on the campsite, or even sporting events. As an added feature, robust lids are strong enough to be used as a seat for up to 113kg! The Coleman Xtreme insulation provides premium cooling performance. The 28QT cooler sits upright in your car with 2 added beverage holders.
Additional Premium PU Insulation
Unlike other manufacturers, Coleman rigid coolers are insulated with Polyurethane insulation (PU). PU is a very dense and an excellent insulator filling the entire internal cavity of the cooler, leaving no air gaps and so improving its insulating efficiency.
Extensive testing at Coleman has shown that cooling loss from rigid coolers is 30% through the top and also 30% through the base. Coleman's latest models feature increased insulation in these particular areas together with reduced insulation on the sides. The result of these changes is not only improved cooling performance but the reduction in exterior dimensions and the increase in internal volume.
A New Shape and Increased Efficiency
When a cooler comes in contact with a warm floor, heat is transferred directly from the floor to the cooler and reduces the cooler's efficiency. Coleman has included shaped feet into the design of its newer rigid cooler models separating the cooler base from the floor and increasing airflow. This flow of air acts as an additional form of insulation, slowing the transfer of heat from the floor and so improving the coolers performance. Additional research has also resulted in the rounding of the cooler’s corners, once again this change of shape has increased airflow and further enhanced their performance.
When a cooler comes in contact with a hot floor, heat is transferred directly to the cooler. If the cooler is lifted off of the ground, the heat is transferred through the air in the gap (air is a great insulator). Cooler have two integrated, rounded feet providing the perfect amount of space for air to flow.
Research indicates that the most performance efficient shape for a cooler is spherical, as this is not practical we have angled the corners of selected models to further enhance performance.