Unitix

The bag the courier holds

Custom mailers

A custom mailer is a branded satchel your stock ships in. The logo is on the outside of the parcel, not on a gift someone chose to carry. If guests are meant to reuse a cotton bag after an event, that is a custom tote.

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Key takeaways

  • Custom mailers and branded courier bags are shipping satchels with your print. They are not retail totes.
  • Unitix mailers are biodegradable bodies in set sizes or a custom cut. The brand is the print, not a paper belly band that tears off.
  • Measure the packed product, not the product on a table. A tight mailer splits. An oversized one looks cheap and costs more to send.
  • Unitix prints custom mailers in Australia.

Why brand the satchel

The courier is a walking ad you already pay for. A plain satchel says nothing. A printed mailer says the brand before the box is opened, and it sits on a verandah in view of the street.

This is packaging, so the brief is operational: how many SKUs, how they stack, whether you need a custom size. A beautiful illustration that forces you up a postage bracket is a bad brief.

A tote in the same order is for the customer to keep. Do not ship apparel in a tote and call it a mailer. Tote bags and mailers solve different days.

Set sizes vs a custom cut

Start with a packed sample on the desk. Then pick a satchel that closes without a wrestling match.

OptionSizeStart here
Size A230mm x 350mmBiodegradable mailer size A
Size B320mm x 400mmBiodegradable mailer size B
Size C440mm x 500mmBiodegradable mailer size C
CustomYou name the cutBiodegradable mailer custom size

How to brief custom mailers

Packed dimensions, volume, and a mark that still reads when the bag is crumpled.

  1. 1

    Measure packed product

    Length, width, and thickness as it will ship, including any inner wrap. Add a little ease. Do not measure the flat garment.

  2. 2

    Pick a size or ask for a cut

    A, B, or C if one of those already fits. Custom if you have one SKU that would waste half the bag.

  3. 3

    Keep the print bold

    A logo and a URL beat a paragraph. Courier handling is not gentle. Fine type on a crease disappears.

  4. 4

    Quantity and proof

    Mailers are consumables. Order for the next quarter, not one week. Approve a proof. Browse custom mailers when the packed size is written down.

Frequently asked questions

Can I get branded courier bags printed in Australia?+
Yes. Unitix prints biodegradable mailers with your artwork in set sizes or a custom cut, and ships them so you can pack orders here.
Are custom mailers the same as tote bags?+
No. A mailer is a shipping satchel. A custom tote is a reusable bag someone carries. Use the tote as merch, the mailer as packaging.
What size mailer should I order?+
Measure the packed product, then match A, B, C, or a custom cut. The mailer range lists the millimetres on each product.

Order custom mailers

Branded biodegradable satchels in standard sizes or a cut you specify.

Shop custom mailers

Related resources

Custom tote bags->Reusable cotton bags when the customer is meant to keep carrying it.Custom socks->A common SKU that actually ships in these satchels.