I-Laminated Cooler Bag,also called Laminated Insulated Bag,Laminated Thermal Bag,is made of EPE foam combined with Aluminum foil and outer fabric such as PPNW,PP woven or RPET.The bag will keep food hot or cold for a long time up to 3 hours.There would be a pair of thick webbing handles enable the bag to be sturdy and strong.The thickness of the materials can be customized according to your request.