There are actually two labels in a piggyback. The top label can be peeled and applied to a different surface while the bottom label can adhered on any surface. Since the top label uses removable adhesive, it is usually the most reliable for flexibility. Piggyback labels are effective for promotions, shipping returns, inventory marking and product registration among others. Here is a look at the different types of piggyback labels. When choosing piggyback labels, it is important to set the record straight by outlining your business objectives.