Case Study: Custom Jacket Zipper Slider for a Coffee Roaster Chain in France
Source:Jacket Zipper Slider /
Time:2026-09-18
Jacket Zipper Slider for a Coffee Roaster Chain in France
A Coffee Roaster Chain approached us with a jacket zipper slider requirement for France. The brief was specific: a defined look, a hard launch date and a unit cost that had to survive shipping and duty. This case study records what was specified, what went wrong in sampling and how the bulk order was delivered.
The challenge
- Long lead times that miss the selling season
- Minimum order quantities far above what a growing brand can absorb
- No reliable way to track a order once it enters production
What we specified
| Product | Jacket Zipper Slider |
|---|---|
| Client type | A Coffee Roaster Chain |
| Market | France |
| Order volume | 1,200 pieces across 3 colourways |
| Base fabric | Denim |
| Decoration | Ultrasonic Welding |
| Size range | Custom grading |
| Sampling rounds | 4 |
| Delivery window | 10 weeks from PO to ex-factory |
How it was resolved
- We rebuilt the tech pack around Denim and locked shrinkage allowance before grading.
- Decoration was moved to Ultrasonic Welding after strike-off tests showed better wash 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 size ratio specification.
Result
- 1,200 pieces delivered inside the 10-week window.
- Unit cost held within 3.0% of the original quotation.
- Return rate linked to fit or workmanship stayed under 1.5%.
- The specification is now on file, so reorders reproduce the approved sample.
What we would repeat
Approve a pre-production sample from the actual bulk fabric. Proto cloth behaves differently in cutting and washing.
Planning something similar?
Tell us the quantity, target price and delivery window, and we will build a customisation programme around those three numbers.
