Shipping labels are a type of identification label that helps describe and specify what’s inside a package. Shipping labels differ depending on the carrier you use, but they all consist of things like addresses, names, weight, and a tracking barcode., shipping labels generally include the following information:
Origin/return address
Destination address
Package weight
Shipping class (Next Day Air and Priority Mail, respectively, in the examples above) Electronic tracking number and shipping barcode (automatically generated by the carrier)The shipping label will also show whether or not postage has been paid; if you are pre-paying and printing shipping labels online, or if you work with an order fulfilment provider, the shipping label will be marked as paid, such as the “US Postage and Fees Paid” note at the top of the sample USPS label