Case Study: Custom Nylon Zipper for a Denim Manufacturer in Italy
Source:High-Intensity Keychain Lights /
Time:2026-09-18
Nylon Zipper for a Denim Manufacturer in Italy
A Denim Manufacturer approached us with a nylon zipper requirement for the Italy 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
- Cartons packed to the factory ratio instead of the buyer's size ratio
- Reorders that quietly changed supplier and changed the hand feel
- MOQ that was quoted per colourway rather than per style
What we specified
| Item | Nylon Zipper |
|---|---|
| Client type | A Denim Manufacturer |
| Market | Italy |
| Order volume | 5,000 pieces across 6 specifications |
| Base material | PU Leather |
| Standard size | 32 mm Width |
| Finish | Soft-Touch Rubber Coating |
| Sampling rounds | 2 |
| Delivery window | 8 weeks from PO to ex-factory |
| Compliance | ISO 9001 |
How it was resolved
- We rebuilt the specification around PU Leather and locked the tolerance before bulk.
- The finish was moved to Anodised Finish 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 8-week window.
- Unit cost held within 2.0% of the original quotation.
- Inspection-related rejection stayed under 0.5%.
- The specification is now on file, so reorders reproduce the approved sample.
What we would repeat
Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.
Planning something similar?
Share the programme details and we will propose two alternatives — one optimised for unit cost, one for lead time — and let you choose.
