Abstract: The present invention provides a device for keeping medical materials, such as medicine, cool. The device allows for easy transportation provided infrequent access to electricity. The device incorporates a thermoelectric cooler (TEC) inside an insulated container. The TEC is in contact with a freezable material which is frozen when the TEC is electrically powered. Upon disconnect from electrical power, the freezable material provides passive cooling inside the container while the medical material is transported. This portable device helps patients to travel with their medicines confidently and safely.