Shipping bags

Poly Mailer dieline — real, manufacturable, any size

This is a live poly mailer dieline drawn by the same structural engine that produces our factory print files — not a stock template. Every cut line, fold line and glue zone below is the real construction, parametric to any dimensions you type in the studio. Manufactured runs start at 250 units — most bag suppliers won't start under 3,000.

SIDE WELDSIDE WELDSIDE WELDSIDE WELDBOTTOM WELDBOTTOM WELDPERMANENT SELF-SEAL ADHESIVEPEEL STRIP / RELEASE LINERCOVERED BY THE SEALED FLAPFRONTSEAL-FLAPBACKPIECE 1 of 2 - 254x355 mmPIECE 2 of 2 - 254x330 mmPoly Mailer — sample 254×330 mmTWOFORM · production dieline · units = mm · flat 532×369 · box 254×330×2
Sample at 254×330 mm. Preview is watermarked — the production SVG/PDF with bleed, glue flaps and dimension annotations exports from the studio on a paid plan.
Flat blank (this sample)
518 × 355 mm (20.39" × 13.98")
Panels in the die
3
Die-cut features
—
Materials
Co-extruded poly film or bubble-lined laminate with a self-seal adhesive lip — printed edge to edge.

The construction

Poly mailer shipping envelope (two separate film webs welded on the sides + bottom; the BACK carries a short ~1in self-seal lip whose adhesive strip seals down onto the front). The engine draws it panel by panel — so when you change the dimensions, the geometry recalculates the way a structural designer would redraw it, not the way an image stretches.

How to get a manufacturable poly mailer dieline

  1. 1. Bring it or brief Sam

    Upload a design from ChatGPT, Midjourney or your own designer — or brief Sam, our in-house AI packaging designer, from scratch.

  2. 2. Sam creates options

    You get up to 4 real concepts, already mapped onto your true production dieline. Not mockups — the real structure.

  3. 3. Choose your favorite

    Pick the direction you love. Every fold, panel, bleed and safe zone is already correct.

  4. 4. Fine-tune it

    Final edits open up. Adjust anything with Sam until it feels unmistakably yours.

  5. 5. Place your exact assets

    Drop in your real barcodes, QR codes, nutrition and legal copy — placed by you, pixel-perfect, untouched by AI.

  6. 6. Approve the proof & order

    See the real proof, approve it, and order. It goes straight to our factory, print-ready, and ships to your door.

Straight answers

Is this poly mailer dieline print-ready?

Yes — it's generated by the same structural engine that builds our factory print files: real cut lines, fold lines, glue zones and dimension callouts. The preview above is watermarked; the production SVG/PDF with bleed exports from the studio on a paid plan.

Can I get it in a custom size?

Yes. The construction is parametric — type your exact length × width in the studio and every panel, flap and glue zone recalculates. Nothing is stretched.

What exactly is the construction?

Poly mailer shipping envelope (two separate film webs welded on the sides + bottom; the BACK carries a short ~1in self-seal lip whose adhesive strip seals down onto the front). At the sample size on this page the flat blank runs 518 × 355 mm (20.39" × 13.98") with 3 panels.

Can you manufacture it too?

That's the point. Design on this dieline with AI in the studio, approve the proof, and the same company manufactures and ships it — with runs starting at 250 units, where most bag suppliers start at 3,000–5,000.

Design on this exact dieline

Type your real size, put AI artwork on the true structure, and order it manufactured — one company, end to end.

Start designing freeorTry the free dieline generator

All dielines

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Corrugated boxes

Shipping bags

Rigid setup boxes

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