Can you use cut-out USPS padded flat rate envelopes as bubble wrap to ship in a USPS box? Since you're still using the USPS service, I figure it's okay? - Quora
![Ship a Bubble Mailer with USPS | Learn How Much it Costs to Send a Bubble Mailer with USPS - Shipping School Ship a Bubble Mailer with USPS | Learn How Much it Costs to Send a Bubble Mailer with USPS - Shipping School](https://www.shippingschool.com/wp-content/uploads/2022/02/Black-Bubble-Mailer.jpg)
Ship a Bubble Mailer with USPS | Learn How Much it Costs to Send a Bubble Mailer with USPS - Shipping School
![Using Pirate Ship and a USPS Priority Flat Rate Padded Envelope. Question in the comments. : r/Depop Using Pirate Ship and a USPS Priority Flat Rate Padded Envelope. Question in the comments. : r/Depop](https://preview.redd.it/0e66fq9fkl281.jpg?width=640&crop=smart&auto=webp&s=1ebc38c04eae969663f5ed7d25966ed03f05eaff)