Al-Sunaidi bag The inner part of a bag for preserving hot and cold food and drinks (thermally insulated bag) lined with reflective aluminum foil appears in the specified part of the image. Features and uses of this bag: Thermal insulation: The silver lining keeps drinks and fresh foods cold, or keeps hot meals warm to prevent spoilage. Liquid resistance: The lining prevents liquids from leaking out in case of spills, and it is also easy to clean. Common uses: Ideal for carrying lunch to work or school, for trips and picnics, or for storing baby milk.