If you have already created a shipment and need to reprint a label with no changes to the information there are several places you can reprint. If you need to make any changes to the label you will need to void the label and use the Edit and Reship option. Shipping labels older than 90 days cannot be reprinted.
For more details visit the Help Center article: How to Edit and Reship a Shipment.
Click the History/Track tab.
On the History/Track page, you will see a list of all your booked and voided shipments.
To the right of the eye icon click the dropdown arrow and select Print Label.
You can also reprint from the order details screen. On the left side of the shipment select the eye icon.
This will take you to the shipment details page where you also have additional options for printing the label.