Thermal bag
![Example of a thermal bag](/Images/godic/202501/20/Cool_Green_Bag_Large0835.jpg")
![Example of a thermal bag](/Images/godic/202501/20/Hot_Cold_Bag_Small0835.jpg")
A thermal bag is a type of thermally insulated shipping container in the form of a bag which can be carried, usually made of thermally insulating materials. It is used to help maintain the temperature of its contents, keeping cold items cold, and hot items hot.