Custom Poly Mailers & Printed Poly Mailer Bags
Self-seal poly bags printed edge to edge, made for apparel and anything else that won't break in transit. Light enough to keep postage down, opaque enough that nobody can see what's inside.
Why Ecommerce Brands Choose Custom Poly Mailers
If what you're shipping can't crack, a poly mailer almost always beats a box on postage and on storage space in your fulfillment area.
Branded Unboxing on Every Order
Custom poly mailers turn shipping into marketing. Your logo, colors, and pattern land in the customer's hands at the moment of delight.
Built for Shipping Clothes
Poly mailer bags are the standard for apparel ecommerce — lightweight, soft, and waterproof. The go-to shipping bags for clothes brands.
Free US Shipping
Every custom poly mailer order ships free across the United States. Factory-direct pricing, no middleman markup.
Waterproof & Tear-Resistant
Coextruded poly film resists rain, snow, and rough handling on USPS, UPS, and FedEx ground — your product arrives looking the way you sent it.
Our Custom Poly Mailer Range
Standard branded polymailers, oversized poly mailer bags for bulky apparel, and clear poly mailers for fulfillment.
Custom Branded Poly Mailers
Full-color printed self-seal poly mailer bags — the flagship custom poly mailer for ecommerce shipping. MOQ 10,000, free US shipping.
View productLarge Poly Mailers
Oversized custom poly mailer bags for bulky apparel, multi-item orders, and shipping bags for clothes. Tear-proof, waterproof, branded.
View productClear Poly Mailers
Transparent poly mailers for resale, wholesale picking, and fulfillment workflows where the contents need to be visible.
View productDesign Your Custom Poly Mailers Online
Upload your logo, drop in artwork, pick a size, and see a real preview of your printed poly mailer bag before you order. No quote calls.
Poly Mailer Sizes
Standard poly mailer bag dimensions, matched to the most common ecommerce use cases. Custom sizes available on request.
Small apparel, accessories, jewelry pouches
Folded t-shirts, slim apparel, paperbacks
Most popular ecommerce poly mailer size
Folded hoodies, multi-item orders
Bulky knits, denim, shipping bags for clothes
Large apparel, blankets, multi-pack shipments
Custom Poly Mailer Specs at a Glance
Material, print, closure, and turnaround for every custom polymailer we produce.
- Material
- 2.5 mil coextruded LDPE polyethylene
- Print method
- Full-color flexographic, up to 4 spot colors
- Print coverage
- Full-bleed both sides, edge to edge
- Closure
- Permanent peel-and-seal adhesive strip
- Tear strip
- Optional easy-open return tear strip
- MOQ
- 500 units per size (bulk tiers from 1,000)
- Turnaround
- 8–12 weeks after proof approval
- Shipping
- Free US shipping, factory-direct
Explore Every Poly Mailer Variant
Size-specific and volume-specific landing pages for the custom mailer you actually need.
Large Poly Mailers
Oversized 14.5×19 and 19×24 poly mailer bags for hoodies, denim, and multi-item apparel orders.
Small Bubble Mailers
Padded alternative for fragile add-ons — jewelry, cosmetics, small electronics.
Clear Poly Mailers
Transparent polymailers for wholesale picking, resale, and fulfillment workflows.
Bulk Custom Poly Mailers
Tiered pricing on high-volume runs of 1,000–25,000+ custom printed poly mailer bags.
Poly Mailers vs Bubble Mailers: Custom Shipping Mailer Comparison
Flat custom poly mailer bags and padded custom bubble mailers solve different ecommerce shipping problems. Compare weight, cost, MOQ, padding, print, and recyclability side by side — then jump to the matching custom mailer variant.
| Attribute | Custom Poly Mailers | Custom Bubble Mailers |
|---|---|---|
| Best for | Apparel, soft goods, accessories, non-fragile ecommerce | Books, electronics, jewelry, gifts, fragile small items |
| Padding | None — flat coextruded film | Internal bubble cushioning |
| Weight per unit | Ultralight — lowest DIM-weight charges | Heavier — padding adds ounces |
| Waterproof | Yes — sealed poly film | Yes — poly outer layer |
| Print & branding | Full-bleed CMYK, matte or gloss finish | Full-bleed CMYK on kraft or poly face |
| Typical MOQ | 500 units | 500 (or lower via low-MOQ tier) |
| Unit cost | Lower — less material | Higher — padded construction |
| Recyclability | Store drop-off (#4 LDPE film) | Store drop-off (poly) or curbside (paper-padded) |
Pick a custom poly mailer when…
- You ship apparel, hats, socks, or other soft goods
- DIM weight and postage cost are your top concern
- You want the cheapest per-unit branded shipping bag
- Contents don't need cushioning to arrive safely
Pick a custom bubble mailer when…
- You ship books, electronics, jewelry, or breakables
- Product needs padded protection in transit
- A corrugated box would over-package the order
- You want unboxing perceived value without box cost
Jump to the right custom mailer variant
Poly Mailers, Polymailers, Poly Mailer Bags — All Covered
Whether you call them custom mailers, polymailers, or shipping bags for clothes — this is the page for them. Here's how brands describe what they're looking for.
Everything You Need to Know About Poly Mailers
In-depth guides on sizing, design files, sustainability, and how poly mailers compare to other shipping options.
Poly Mailers: The Complete 2026 Guide
Sizing, mil thickness, materials, and how to spec poly mailers for your ecommerce brand.
How to Make Custom Poly Mailers
From artwork files to first production run — what goes into custom printed poly mailer bags.
Custom Bubble Mailers vs Poly Mailers
When to ship in a padded bubble mailer and when a flat poly mailer wins on cost and weight.
How to Design a Custom Mailer
Layout, bleed, color, and file prep tips for your first custom poly mailer print run.
Ultimate Guide to Eco-Friendly Mailers
Recycled-content and compostable poly mailer options for sustainability-focused brands.
Custom Poly Mailer FAQs
What are poly mailers?
Poly mailers are lightweight plastic shipping envelopes made from coextruded polyethylene film. They have a self-seal adhesive strip and are used to ship non-fragile items like apparel, soft goods, and accessories. Custom poly mailers add full-color print on the outside, turning every shipment into a branded touchpoint.
What are poly mailer bags used for?
Poly mailer bags are the standard shipping bags for clothes, soft goods, and any non-fragile ecommerce product. Apparel brands, accessories sellers, and resellers use poly mailers because they're cheap, waterproof, and ship at the lowest possible dimensional weight.
What's the difference between a polymailer and a bubble mailer?
A polymailer (or poly mailer) is a flat, unpadded plastic shipping envelope. A bubble mailer has internal bubble cushioning for padded protection. Poly mailers are lighter and cheaper to ship; bubble mailers protect fragile items. We cover the tradeoffs in our bubble mailers vs poly mailers guide.
What's the most popular poly mailer size?
10 x 13 in is the most popular poly mailer size for ecommerce — it fits most folded apparel, paperbacks, and accessories. Brands shipping bulkier apparel like hoodies and denim usually add 12 x 15.5 in and 14.5 x 19 in to the lineup.
Are custom poly mailers expensive?
Custom poly mailers are usually cheaper per-unit than custom bubble mailers because they use less material. At MOQ 10,000, custom printed poly mailers come in well under what you'd pay for the same volume of branded boxes — and they ship for less because they weigh almost nothing.
Are poly mailers and poly bags for shipping the same thing?
Poly bags for shipping is the broader category — it covers any plastic bag used for shipping, including merchandise bags, layflat poly bags, and zip-top bags. Poly mailers are specifically the self-seal envelope style used as the outer shipping container.
Can I design my own custom poly mailers online?
Yes — use our online designer to upload your logo, drop in artwork, pick a size, and see a real preview of your custom poly mailer before you order. No quote calls, no back-and-forth on email.
What mil thickness do your poly mailers use?
Our standard custom poly mailers are 2.5 mil coextruded polyethylene — the ecommerce industry standard. It's thick enough to resist tears and punctures from zippers, buttons, and rough sortation belts, but light enough to keep DIM-weight charges low. Heavier 3–4 mil poly mailer bags are available on request for denim, footwear, and multi-item shipments.
Do custom poly mailers come with a self-seal strip?
Yes. Every custom polymailer we ship uses a permanent peel-and-seal adhesive strip that tamper-evidences the shipment and cuts packing time to seconds per order — no tape gun required.
What's the minimum order for custom printed poly mailers?
Standard MOQ on custom printed poly mailers is 500 units per size. That's the sweet spot for factory-direct pricing on branded poly mailer bags. Per-unit cost drops again at 1,000, 2,500, and 5,000 units — the bulk custom poly mailers page lists each tier.
Are your poly mailers recyclable or eco-friendly?
Standard poly mailers are LDPE (#4) and can be recycled at store-front plastic film drop-offs. We also offer recycled-content and compostable poly mailer options — see the eco-friendly mailers guide for the tradeoffs on cost, durability, and print quality.
Ready to Design Your Custom Poly Mailers?
Jump into the designer and see your brand on a printed poly mailer bag, or grab a custom quote in 24 hours.