Custom Sleeve With Cap Lock
A plain sleeve slides on and slides off, which is fine on a shelf and a problem in a bag. Adding a cap lock puts a folded tab at one end that catches against the tray, so the sleeve stays where it was put. It costs almost nothing and it solves the one real weakness of the format. We produce a lot of sleeve with cap lock work at ZEE Packaging and the security is what clients ask for.
A Sleeve That Stays Put
A sleeve with cap lock does not slide off unprompted.
- A folded cap at one end catches against the tray
- The sleeve holds its position during handling
- It still slides off cleanly when released
- No tape, sticker or band is needed
- The cap gives an extra printed surface
- Contents stay covered in a bag or a delivery
Most brands choosing a sleeve with cap lock have had plain sleeves work loose between the shelf and the customer.
Cap Depth Against Slide Feel
Two things pulling slightly against each other.
- Too shallow a cap and it does not hold at all
- Too deep and removal feels awkward
- Board caliper affects how the cap engages
- Lamination adds thickness, changing the fit
- A thumb notch helps release without force
- We sample both the hold and the slide together
- Single cap lock sleeve the standard build we run
- Double cap version catching at both ends
- Full width sleeve covering the entire tray face
- Sleeve with a window showing product beneath
- With a printed tray the interior visible on opening
- Belly band with a cap a narrower, cheaper option
Sizes We Print Regular
Every sleeve with cap lock is built to your tray, though these run often:
- 6" x 4" x 2" for a small gift
- 8" x 6" x 2" for a mid size item
- 10" x 8" x 2" for a curated set
- 12" x 9" x 2" for apparel
- 4" x 4" x 4" for a candle or jar
- 9" x 6" x 1.5" for a slim format
Send us the tray dimensions and the board it is made from, since both affect how the cap engages.
Board And Print
- SBS C1S at 18pt to 24pt on the sleeve
- Kraft board for a natural or artisan position
- Matte, gloss and soft touch lamination
- Foil, spot UV and blind deboss on the sleeve
- Printed cap panel, which is visible on the shelf
- Coordinated tray in matching or contrasting stock
The cap panel is worth printing. It faces outward on a shelf and most brands leave it blank without realising it is seen.
Materials Worth Choosing
- Recycled board across most grades we run
- FSC certified stock, certificate available on request
- Soy based ink through the whole run
- No sticker or band needed to hold the sleeve
- Aqueous coating rather than plastic lamination
- Right sizing so no board is wasted per unit
What Happens On Your 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 to test the hold and release
- Urgent turnaround at 5 to 8 business days
- Free shipping worldwide with nothing hidden
Frequently Asked Questions
Why add a cap lock?
Because plain sleeves slide off in a bag. The cap holds it in place without needing a sticker or band.
How much is a sleeve with a cap lock?
Rough estimate is $0.25 to $0.70 per unit plain, $0.40 to $1.10 with print and $0.70 to $1.80 with finishing at moderate quantity. Size moves it. Shipping is included in our price. This is estimate only, so ask our team for a exact quote.
Is it harder to open?
Slightly, which is the trade off. A thumb notch makes release easy without losing the hold.
Does the cap add much cost?
Very little. It is a die cut and folded feature rather than a separate component.
Can it catch at both ends?
Yes, with a double cap version. That holds more securely, though removal takes a bit more effort.
Does lamination affect the fit?
Slightly, since it adds thickness. We account for it at dieline stage rather than afterward.
Should the cap be printed?
Definitely. It faces outward on a shelf and is seen before the main panel in some layouts.
