Material: the outer layer is durable oxford fabric material and the inner layer is aluminum foil, keeping food hot/cold in desired temperature for hours. Durable stitches ensure the lunch bag won't tear apart. Convenience: standing upright, dual zipper closure, two handles make it easily to carry by hand. Function: packing lunch, snacks, seafood, fruits , sandwich during picnics, hiking, road trips, camping, carrying lunch to working location.
