1Pc Large-Capacity Waterproof Insulated Picnic Bag, Made Of Thickened Aluminum Foil Material That Is Waterproof, Leak-Proof, And Oil-Proof. It Can Be Folded And Used As A Lunch Box. Perfect For Office Workers To Carry Insulated Meals, Suitable For Office Lunch Insulation, School, Students, Teachers, Picnics, And Meal Carrying. Thickened, Simple, And Stylish Lunch Bag.