Food-grade aluminum foil inside, heat insulation plays a good role in heat preservation, does not account for oil, can be wipedThis new arrival lunch bag is roomy and exquisite, suitable for you to accommodate various kinds of food and snacks. It helps to keep food warm(or cold) when you go out, which is very convenient.Material:300D Oxford cloth + braid + aluminum filmSize: 29*18*24cm（11.4*7.1*9.5in）Weight: 330gGender: UnisexPackage Content:1* lunch bag Promise:If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.Due to manual measurement, there might be a tolerance in the product size.