Custom Mailer With Zipper
The zipper strip is a small perforated channel that runs across the box, and pulling it tears a clean line so the parcel opens without scissors. It sounds trivial until you consider how many customers open a box badly, damage the contents, and then film the whole thing. We produce a lot of mailer with zipper work at ZEE Packaging and the opening experience is genuinely why brands ask for it.
Opening Without A Knife
A mailer with zipper removes the scissors from the equation.
- A perforated strip tears cleanly along a defined line
- No knife means no risk of slicing the product inside
- The tear reads as intentional rather than improvised
- It opens in a second, which matters on camera
- No ragged edges left behind on the box
- Customers with limited hand strength find it far easier
Most brands adding a mailer with zipper do it after seeing customers hack their boxes open on video.
The Perforation Has To Be Right
This is where the format succeeds or fails.
- Too fine and it tears prematurely in transit
- Too coarse and the customer struggles to start it
- The starting tab must be obvious, or nobody finds it
- The tear line has to run with the flute, not against it
- Board grade changes how the perforation behaves
- We test the tear physically rather than trusting a drawing
- Single zipper strip the standard mailer with zipper
- Zipper plus a return seal opens easily and reseals for returns
- Full width tear the lid separates completely
- Partial tear the lid stays hinged after opening
- Shipper display version tears open into a retail unit
- With a printed interior revealed as the strip comes away
Sizes We Print Regular
Every mailer with zipper is built to your product, though these run often:
- 6" x 4" x 2" for small items
- 8" x 6" x 3" for a standard order
- 10" x 8" x 4" for a mid size product
- 12" x 9" x 3" for apparel
- 9" x 6" x 2" for books and prints
- 14" x 10" x 5" for larger orders
Board And Print
- E flute corrugated, which perforates cleanly
- B flute where the product carries weight
- Kraft corrugated for a plain, low cost outer
- White corrugated where you want brighter print
- Litho laminated for full color across the surface
- One color flexo, the cheapest branded route
Print the tear instruction near the tab. A zipper strip that customers do not notice gets cut open with a knife anyway, which defeats the purpose entirely.
Materials That Reduce Impact
- Recycled corrugated, standard across these grades
- FSC certified board, certificate available on request
- Soy based ink through the whole run
- No tape needed on the closure, keeping recycling clean
- Paper void fill instead of plastic
- Right sizing so you ship less air
What Happens When You Order
- 100 unit minimum, so a small brand can test the format
- Free 3D mockup and flat proof before anything prints
- Free dieline drawn by our own designer
- Physical sample on request, essential for testing the tear
- Urgent turnaround at 5 to 8 business days
- Free shipping worldwide, including to your fulfillment center
Frequently Asked Questions
How much is a zipper mailer?
Rough estimate is $0.45 to $1.10 per unit for a plain format, $0.65 to $1.60 with one color print and $1.00 to $2.40 for full color at moderate quantity. Volume moves it. Shipping is included in our price. This is estimate only, so ask our team for a exact quote.
Will it tear open in transit?
Not with a correctly specified perforation. Premature tearing happens when the cut is too fine for the board grade.
How do customers know where to start?
A printed instruction beside the tab. Without it plenty of people miss the strip entirely and reach for scissors.
Can it reseal for returns?
Yes, with a second adhesive strip alongside the zipper. That combination handles both opening and returning neatly.
Does it weaken the box?
Slightly along the tear line, which is why placement matters. We keep it away from load bearing corners.
Which board perforates best?
E flute gives the cleanest tear. B flute works but the tear feels heavier, so we adjust the perforation accordingly.
Can it open into a display?
Yes, that is a shipper display. It arrives as a case and the zipper opens it into a retail unit.
