Custom Poly Mailers
Custom poly mailers are lightweight polyethylene shipping bags with self-seal closures and full-bleed brand printing — the standard for shipping apparel and soft goods because they weigh 60-80% less than boxes and almost never trigger dimensional-weight fees. Cubit manufactures printed poly mailers in any size, from standard 2.5 mil LDPE to bubble-lined, recycled PCR, and certified compostable films — starting at just 500 units with free design support.

Key Takeaways — Custom Poly Mailers
Types of Custom Poly Mailers
From printed self-seal mailers to bubble-lined and compostable — pick the bag built for what you ship.
Poly Mailer Film & Thickness Guide
Match film thickness to what you ship — 2.5 mil covers most apparel; heavy or sharp-edged products need more.
| Film | Thickness | Strength | Look | Recommended For |
|---|---|---|---|---|
| Standard 2.5 mil LDPE | 2.5 mil | Everyday apparel & soft goods | White, gray, or full print | T-shirts, leggings, accessories |
| Heavy-Duty 4 mil Co-Ex | 4.0 mil | Puncture-resistant | Opaque white/black interior | Denim, shoes, multi-item orders |
| Bubble-Lined | 3 mil + 3/16″ bubble | Cushioned protection | White or printed exterior | Cosmetics, electronics accessories, jewelry |
| PCR Recycled (50-100%) | 2.5–3 mil | Same as virgin LDPE | Slight gray tint or printed | Eco-positioned DTC brands |
| Compostable PBAT/PLA | 2.5 mil | Comparable to LDPE | Matte natural | Zero-waste & organic brands |
Shipping something fragile or premium? Compare with our custom mailer boxes for structured unboxing experiences.
Poly Mailers vs. Mailer Boxes vs. Bubble Mailers
The decision that changes your per-order shipping economics more than any other.
| Feature | Poly Mailers | Mailer Boxes | Bubble Mailers |
|---|---|---|---|
| Per-Unit Cost | $0.22–$0.55 printed | $0.65–$2.50 printed | $0.35–$0.75 |
| Shipping Weight | ~30g — lightest option | 150–400g | ~60g |
| DIM Weight Fees | Almost never triggered | Common on light items | Rare |
| Print Canvas | Full-bleed both sides | All panels + interior | Full-bleed exterior |
| Protection | Water-resistant, tear-proof | Crush protection | Cushioned + water-resistant |
| Best For | Apparel, soft goods | Fragile, premium unboxing | Small fragile items |
| Storage Space | Minimal — ships/stores flat | Bulky even flat-packed | Compact |
| Eco Options | PCR + compostable films | Recycled corrugated | PCR films |
Full breakdown: Poly Mailers vs Boxes for E-commerce
Order Poly Mailers Online
Configure size, film, and printing on any mailer below — instant specs, quotes in hours.
Poly Mailers for Every Business
From apparel brands to FBA sellers — branded shipping bags matched to how you ship.
Make Your Mailers Unmistakably Yours
The mailer IS the unboxing for apparel brands — use every inch of it.
Full-Bleed CMYK Printing
Edge-to-edge printing on front and back — patterns, photography, and bold brand colors.
Interior Printing
Surprise-and-delight messages printed inside the mailer for a branded opening moment.
Dual Self-Seal Strips
Second adhesive strip lets customers reuse the same mailer for returns — fewer support tickets.
Tear Strips
Easy-open perforated strips so customers never scissor through your product.
Custom Sizes & Thickness
Any dimension from 6×9″ to 24×36″, in 2.5–4 mil films matched to your products.
Eco Films
PCR recycled content or certified compostable films with on-bag recycling messaging.
Why Order Poly Mailers from Cubit?
A complete packaging platform — not just a printer. Design, order, track, and protect.
Custom Poly Mailers FAQ
Expert answers on sizing, films, printing, FBA compliance, and eco options.
What are custom poly mailers?
Custom poly mailers are lightweight shipping bags made from LDPE or co-extruded polyethylene film, printed with your branding and sealed with a permanent self-adhesive flap. They're the standard shipping packaging for apparel and soft goods because they weigh 60-80% less than boxes, cost less per unit, and can be printed edge-to-edge.
What is the minimum order for custom printed poly mailers?
Cubit produces custom printed poly mailers from just 500 units — low enough for product launches and small DTC brands. Stock (unprinted) poly mailers and clear poly bags are available from 1,000 units with faster turnaround.
How much do custom poly mailers cost?
Custom printed poly mailers typically run $0.22–$0.55 per unit depending on size, film thickness, and print coverage, with prices dropping at 5,000+ quantities. Blank stock mailers cost less. A 10×13″ printed mailer at 5,000 units lands around $0.28–$0.40 each — try our instant estimator or request an exact quote.
What sizes do poly mailers come in?
Common sizes are 6×9″ (accessories), 10×13″ (1-2 shirts — the most popular), 12×15.5″ (multi-item orders), 14.5×19″ (hoodies, denim), and 24×24″+ (bulky soft goods). Because every Cubit mailer is made to order, any custom dimension is available.
Are poly mailers waterproof?
Yes — polyethylene film is inherently water-resistant, and the self-seal adhesive closure keeps moisture out in normal transit conditions. That's a key advantage over paperboard mailers for apparel: rain on a doorstep won't damage the product inside.
Poly mailers vs boxes — which should I use?
Use poly mailers for non-fragile, soft, or flexible products (apparel, textiles, accessories): they're cheaper per unit, avoid dimensional-weight fees, and ship flat. Use mailer boxes for fragile, rigid, premium-unboxing, or crush-sensitive products. Many brands use both — mailers for basics, boxes for premium lines.
Do you make eco-friendly poly mailers?
Yes. We offer poly mailers with 50-100% post-consumer recycled (PCR) content that are store-drop recyclable, and certified compostable mailers made from PBAT/corn-starch films. Both take full-color printing, so eco doesn't mean unbranded.
Are your poly bags Amazon FBA compliant?
Yes. Clear poly bags and mailers can be printed with the required suffocation warning in Amazon's specified type sizes, and we produce the 1.5 mil+ thickness FBA requires. Tell us the marketplace and we'll match the prep spec.
What film thickness should I choose?
2.5 mil is the standard for single-garment apparel orders. Step up to 3 mil for multi-item orders and 4 mil co-extruded film for heavy goods like denim, shoes, or anything with corners. Bubble-lined mailers add 3/16″ cushioning for fragile items.
How fast can I get custom poly mailers?
Custom printed poly mailers ship in 10-14 business days standard, with 5-7 day rush production available. Stock mailers and clear poly bags ship in 3-5 business days. Free USA shipping is included on every order.
Ready to Ship in Your Own Branded Mailers?
Get a free quote in minutes. Our packaging experts will match film, size, and printing to what you ship — and show you the shipping-cost math.
Poly Mailers by Need
Wholesale pricing, rush production, and expert guides
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