The flat-bottom bags using kraft paper material, give a person a kind of very the feeling of restoring ancient ways, kraft paper, coating a layer of frosted glass membrane is more advanced, but also can realize the function of waterproof, built-in aluminized material can keep the food fresh, greatly such as coffee, cat food dog food of these foods are need aluminum materials, eight face seal design, more comprehensive display bag each edge,  Create more room, flat bottom design, make standing more stable.