Case Study: Custom Invisible Zipper for an Outdoor Gear Label in Ireland
Source:Modern Wooden Vase /
Time:2026-09-18
Invisible Zipper for an Outdoor Gear Label in Ireland
An Outdoor Gear Label approached us with a invisible zipper requirement for the Ireland market. The brief was specific: a defined look, a hard launch date and a unit cost that had to survive freight and duty. This case study records what was specified, what went wrong in sampling and how the bulk order was delivered.
The challenge
- A zipper puller that broke under pull test at the warehouse
- Cartons packed to the factory ratio instead of the buyer's size ratio
- Shade drift between the approved lab dip and the bulk lot

What we specified
| Item | Invisible Zipper |
|---|---|
| Client type | An Outdoor Gear Label |
| Market | Ireland |
| Order volume | 5,000 pieces across 3 specifications |
| Base material | Zinc Alloy |
| Standard size | 20 mm Width |
| Finish | Soft-Touch Rubber Coating |
| Sampling rounds | 2 |
| Delivery window | 6 weeks from PO to ex-factory |
| Compliance | ISO 9001 |
How it was resolved
- We rebuilt the specification around Zinc Alloy and locked the tolerance before bulk.
- The finish was moved to Soft-Touch Rubber Coating after strike-off tests showed better durability.
- A pre-production sample was approved and retained as the golden reference.
- Production ran with in-line inspection and a mid-run photo report.
- Cartons were packed to the client's own barcode and ratio specification.

Result
- 5,000 pieces delivered inside the 6-week window.
- Unit cost held within 1.5% of the original quotation.
- Inspection-related rejection stayed under 2.0%.
- The specification is now on file, so reorders reproduce the approved sample.
What we would repeat
Approve a pre-production sample made from the actual bulk base material. Substitute material behaves differently in finishing.
Planning something similar?
Tell us the item, the quantity and the delivery window. We will quote it with the sub-processes named, so the lead time you approve is the lead time you get.



