... and student to keep lunch ,easy to take cooler bag, lunch cooler bag, picnic cooler bagItem:GL-M05Bag size:l9"*7 1/2 ... /420D+2mm PE foam +aluminium ,the thickness of PE foam can be from 1mm to 8mm , also PVC or EVA ... can instead of aluminiumColor:dark blue , or customized is availablePacking :100pcs/ ... 48HcmFor more details ,pls feel free to contact me . 600D cooler bag