The Priority Mail® Flat Rate Envelope is quick, easy, and convenient, simplifying your Priority Mail® shipping process for documents. Just like the Flat Rate Boxes, this paperboard envelope features a predetermined flat rate regardless of the weight or destination zone of the package. This envelope is ideal for sending 8-1/2" x 11" size documents, including passports and passport documentation.
Please Note: This product ships in single envelopes (1-5) and in packs of 10. An order of 1 equals either (1-5) envelopes or a pack of 10 envelopes depending on your selection under Format.
Each Priority Mail and Priority Mail Express shipment includes USPS Tracking®.
A Universal Product Code (UPC) (11-digit PS barcode which includes):
- The price of the product.
- The product description.
Package Pickup Service:
- Customers can go to USPS.com to request Package Pickup.
- There is $50 insurance coverage included on each Priority Mail shipment.
A Quick Reference (QR) Code:
- A QR Code is located on the front or back of the Expedited Packaging Supplies, when scanned it will allow customers to schedule free Package Pickup.
- Recycling logos are displayed on the front or back of Expedited Packaging Supplies. Information on the recycling logo provides the proper steps to effectively recycle the item.
The Postal Store® ships all in-stock orders with USPS Tracking™. Please allow 5 - 7 business days for in-stock items to be shipped.
To view your order status and tracking information, sign in to your USPS.com account, go to "Activity History", and select your Order#.
Orders from the Postal Store may be shipped from different distribution centers. If your order contains multiple items, they may be shipped separately.
The Postal Store® cannot accept orders for shipment outside the United States, but we do ship to APO/FPO/DPO addresses and U.S. territories. Learn More
Free Shipping Supplies Free shipping supplies from The Postal Store Shipping Supply site are mailed Parcel Select® Ground and are shipped within 2 - 8 business days. For your convenience all orders will contain a carrier release endorsement "Leave if No Response". This will allow your postal carrier to leave your expedited packaging supply order if you are not available to receive the delivery.
Expedited Shipping Supplies Orders of our Flat Rate Expedited Shipping Supplies are fulfilled by your local Post Office. If your local Post Office is unable to fulfill your order of Flat Rate Expedited Shipping Supplies within 1 - 2 business days, your order will be fulfilled by our distribution center within 2 - 8 business days.