MIER Portable Thermal Insulated Cooler Bag Mini Lunch Bag for Kids, Black 100% Polyester, 9.45"Length x 5.91"Wide x 3.15"High Aluminium lining with foam Handle and could easy put into bag This Lunch Bags are Ideal to Take to Work, for Kid's Lunches, Outing Events, Picnics, etc This Lunch box pouch could keep your food cold or warm for about 3-4 hours