Abstract: A shopping bag system includes several different types of shopping bags for carrying different types of products, such as different types of groceries. For example, insulated bags, tall bags, medium bags, and wide bags may be provided, each customized to accommodate types of items for transport. Each bag is collapsible, easily stored in any one of the other bags, labeled (on the front and on the side as an index label in the stored position), and easily identified and selected for use in the packing and transport of similar types of items. The bags are then efficiently carried into the ideal location of the home for unloading in an organized and efficient manner.