The USPS Store's shipping supplies catalog, checked store.usps.com on 2026-08-28, lists ReadyPost Bubble Packing Material by the roll and ReadyPost Bubble Mailers in two sizes, alongside its Priority Mail boxes, envelopes and packaging tape. It ships only in fixed pack sizes, which is the detail that decides whether it is the cheap option or not.
Same 3/8 in bubble format sold everywhere, just packaged and priced by USPS in fixed pack sizes.
The cushioning item lives under the ReadyPost house brand, alongside USPS's Priority Mail boxes, envelopes and tape. Checked on store.usps.com on 2026-08-28:
| Product | Format | Pack size | Price |
|---|---|---|---|
| ReadyPost Bubble Packing Material | 16 in × 9 ft roll, 3/8 in bubbles, perforated every 12 in | 10 rolls | 27.00 USD |
| ReadyPost Large Bubble Mailers | 19 in × 12.5 in, self-sealing flap, bubble-lined | 36 mailers | 79.00 USD |
| ReadyPost Small Bubble Mailers | Bubble-lined, self-sealing flap | Sold by the pack | Priced on the product page |
| ReadyPost Packaging Tape | 1.88 in × 54.6 yd, heavy duty | 6 rolls | 30.55 USD |
USPS still does not sell single rolls or single mailers retail; every ReadyPost item comes in one fixed pack size, ordered online and shipped to you rather than picked off a rack at the counter. That is the whole trade-off against buying bubble wrap somewhere else: USPS wins if you actually need a case of it, and loses badly if you need one roll for one box today.
Buying bubble wrap from the USPS Store does not tie you to a USPS shipment. It is ordinary packing material sold under USPS's own brand; a roll bought that way pads a box just as well on a UPS or FedEx label as it does on a Priority Mail one.
Nothing in USPS rules requires ReadyPost specifically. A shipper wrapping an item in bubble wrap bought anywhere else and handing the sealed box to a clerk faces no different treatment at the counter.
A Priority Mail box's own double wall is a form of protection for what fits inside it without extra cushioning, which is part of why the free boxes work well for anything already reasonably sturdy. It is still not a substitute for wrapping a genuinely fragile item.
General retailers with an office or shipping aisle carry small rolls off the shelf, no online order or fixed pack size required; our Walmart shipping supplies guide covers exactly what is in stock and what is online-only. Dedicated packaging suppliers sell it by the roll or the case at a lower unit price once volume climbs past what a single USPS Store pack covers, in our bulk supplies guide. And if bubble wrap specifically is the obstacle rather than the goal, our bubble wrap alternatives page prices five materials carriers accept in its place, several of them cheaper per cubic foot.
Retailer catalogs change without notice. Pack sizes and prices above reflect what was published on the date checked; USPS periodically adds or retires items and adjusts pricing.
Yes, under its own ReadyPost brand. The USPS Store, checked store.usps.com 2026-08-28, lists ReadyPost Bubble Packing Material as a 16 in by 9 ft roll, 10 rolls per pack for 27.00 USD, plus ReadyPost Bubble Mailers in small and large sizes, 36 per pack for 79.00 USD in the large size.
Functionally yes, 3/8 in bubbles on a perforated roll, the same format office and shipping-supply retailers sell under their own house brands. ReadyPost is USPS's packaging label, not a different material.
Not necessarily. The USPS Store sells only in fixed pack sizes, 10 rolls or 36 mailers at a time, ordered online and shipped to you, so a single roll from a local retailer or a bulk case from a packaging supplier can both beat it on price or convenience depending on how much you need.
General retailers with an office or shipping aisle carry small rolls off the shelf same-day, and dedicated packaging suppliers sell it by the roll or the case at a lower unit price once volume climbs. Our bubble wrap alternatives guide also covers five substitutes carriers accept in its place.