5 Pack Double Layer Foil Insulated Box Liners 12 x 12 x 5.5 inches. Fits USPS Large Flat Rate Box (12" x 12" x 5.5") Silver Shipping Boxes for Frozen Food, Odorless Insulated Containers.

Highlights 5 pack of double layer insulated boxes for shipping frozen food, 12 x 12 x 5.5 inches. Cold shipping boxes for food fit USPS Large flat rate box (12" x 12" x 5.5") and other UPS Priority Flat Rate boxes , it also will help you transport things depending on temperature. Insulated boxes for shipping food come in bright metallic color and have a smooth surface, which you can wipe out if some of goods are leaked. Aluminum and bubble insulated box liners. Container for shipping frozen food is equipped with a double layer of bubble insulation, measuring 8 mm thick, compared to the standard single layer of 4 mm. This additional layer significantly improves thermal protection and reduces the risk of damage during transport. Hot and cold are inside. Inside insulated shipping box, hot food stays hot, and cold products stay cold. There's no risk of spoiling your products thanks to waterproof characteristics of cold boxes for shipping. No rain or ice causes danger to food with insulated