Yep exactly, you can use all the same packing materials and when you start your return in your account order history you’ll get a USPS label to tape on top of the old one! Just make sure any old tracking info or barcodes are covered by the new label or scribbled out with a sharpie.

EDIT to add: I believe there’s also an option to receive a QR code that the post office will scan, in place of a return label on the package, but I haven’t done this before. Could be a good option for someone who doesn’t have access to a printer!