Patented Ultratherm insulation in both body and domed lid provide for maximum cold retention and is ideal for both transport of food and beverage items on the job site or transport of temperature sensitive materials such as pharmaceuticals, blood, etc. Refrigerator quality liner won't stain or absorb odors. Has easy-carry swing-up handles. Snap-lock, child safety latch. Special hinge design holds lid open for easy access. Threaded drain plug for hose hook up.