Imported ??Polyester.Can Keeps your food warm or cold for hours well( Pls use ice bag to keep food cold for hours). ??This is a very lightweight item and holds a lot. It has light insulation, enough to get my special blend of coffee milk to the office still chilled, but not enough to keep food cool all day. Item is very pretty and functional. ??Color: As the picture shows. It can be used as lunch bag, picnic bag, sundry bag or shopping bag, Stylish design, suitable for all groups,include men,women,girls,boys and kids ??Very durable, No smell, tear resistant, wear-resistant, waterproof and dirt-proof, easy to clean ??This is a cheap and good product. Very large, can put sandwiches, soda, small ice packs and a small bag of potato chips inside to keep the food cold.