Drint

3D mockups · Film pouch

Self-seal e-commerce mailer

Nº D-11302

Three-layer opaque LDPE mailer (colored outside, black inside) with peel-and-seal tape, tears when opened — 1–2 color flexo on the front; online shops, fashion, accessories.

Made for: Fashion & retail.

Sample printed on clear PET / PE laminate 0.08 mm, matte lamination; style: gifts & souvenirs.

Sample size 280 × 380 × 10 mm.

About this mockup

A three-layer opaque LDPE mailer with a self-seal flap that tears when opened — flexo printed in one or two colours with the shop’s logo.

Usually holds
Clothing, accessories, unbreakables.
Who uses it
Online shops, fashion labels.
Popular in
The US, Europe, Vietnam.
Also searched as
self seal poly mailer bag · shipping bag mockup · ecommerce mailer bag

How to use this mockup

  1. Start from the 280 × 380 × 10 mm sample or type your own size.
  2. Upload your label or artwork.
  3. Turn it in 3D, export a picture or video, or stage a scene.

Trade tips

  • A clear window shows the product: put it at eye level on the shelf.
  • On metallised film, underprint white where colours should be bright; unbacked areas shine like metal.
  • Clear film shows the product: back the text with white so it can be read.
  • Matte lamination feels premium and softens colours by about a shade: add contrast in the design.

Questions

Is the self-seal e-commerce mailer mockup free?

Yes, commercial use included; Free adds a watermark grid at 1K, Pro exports 4K without it.

Can I use my own size for the self-seal e-commerce mailer?

Yes — from the 280 × 380 × 10 mm sample or your own size.

Can I use the mockup pictures to sell and advertise?

Yes, on every plan including Free: use them on your website, marketplaces, social media and for clients. Pro removes the watermark and exports 4K pictures.

What is the self-seal e-commerce mailer sample printed on?

The sample is clear PET / PE laminate 0.08 mm with matte lamination.

Construction

A poly mailer is a multi-layer blown LDPE film bag heat-sealed on two sides and the base, with a fold-over flap carrying self-adhesive tape under a release liner. Peel, fold and press to seal; the adhesive grips so hard that opening means tearing the bag, which shows tampering. Some add a second adhesive strip for returns.

Choosing board and material

Three co-extruded LDPE layers: a coloured outer layer (white, grey, pink, black) for print, and black middle and inner layers that block light so contents can't be seen; about 50–100 microns depending on size and contents. Recycled-content and compostable films exist; state the actual material rather than vague green claims. Mailers don't absorb impact; fragile items need bubble mailers or boxes.

Finishing

One- or two-colour flexo on the front is standard, sometimes on the back too; multi-colour gravure for very large runs. A matt surface feels more premium than gloss. Leave a plain area for the courier's shipping label.

Preparing the print file

Design to the flat bag size, keeping 8–10 mm seal margins and the fold-over flap free of key details; reserve an A6-size (100 × 150 mm) blank panel for the shipping label, usually on the front. Flexo needs spot colours and lines of at least about 0.3–0.5 mm, and no smooth gradients. A big logo, short slogan and social QR read well as the bag passes through many hands.

Common mistakes

  • No space for the waybill: the label covers the logo and the branding is lost.
  • Text on seal areas or the flap: it gets cut or covered when sealed.
  • Film too thin for angular goods: the bag punctures in transit.
  • Smooth gradients in flexo: colours band and step.

Questions and answers

What fits in a 280 × 380 mm self-seal e-commerce mailer?

Tees, folded shirts, light dresses, accessories and thin books; thick jackets or shoe boxes need a larger size such as 380 × 500 mm.

What should an online fashion shop print on its mailers?

A big logo, the shop name or web address, a short thank-you and a QR to its profile; the back can carry return instructions or stay plain for the waybill.

How many colours can a poly mailer be printed in?

Usually 1–2 flexo colours; more colours or photos need gravure, which suits very large runs.

Are self-seal mailers tamper-evident?

The tape grips so hard the bag must be torn to open, so tampering is obvious; it isn't a full security seal.

How thick should a poly mailer be?

About 50–70 microns for clothing and soft accessories; 80–100 microns for heavier or angular goods.

Sizes available

  • 280 × 380 × 10 mm

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