This bag is practically the same as the classic pad, the only difference is its bellows, that is the width of the bag. This bellows allows you to have more capacity to introduce more quantity of product or larger products. Another important feature is as a marketing tool, for advertising and promotional use, since in addition to being able to be printed on all sides, bags with bellows can be presented vertically on the shelves. The shape of the bag or container is the same, it consists of two horizontal and one vertical welds.