The padded envelope costs more to ship, and is not an option to use with paypal. It may get through or it may get rejected and returned or the recepient may have to pay an upcharge, depending on how close the post office looks. When I ship a padded flat rate envelope, I buy the label from USPS.com website and then just paste the tracking number into my paypal buyer's ship info. It would be nice if paypal offered this envelope as an option.
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