Case Study: Custom Selvedge Denim Fabric for a Bag and Luggage Maker in South Korea
Source:Electronic Device Lanyard /
Time:2026-09-18
Selvedge Denim Fabric for a Bag and Luggage Maker in South Korea
A Bag and Luggage Maker approached us with a selvedge denim fabric requirement for the South Korea 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
- Elastic that lost recovery after three washes
- Shrinkage that only showed up after the first wash
- A spec that lived in an email instead of a tech pack

What we specified
| Item | Selvedge Denim Fabric |
|---|---|
| Client type | A Bag and Luggage Maker |
| Market | South Korea |
| Order volume | 2,000 pieces across 4 specifications |
| Base material | Silicone |
| Standard size | 360 gsm |
| Finish | Yarn-Dyed Finish |
| Sampling rounds | 2 |
| Delivery window | 10 weeks from PO to ex-factory |
| Compliance | RoHS |
How it was resolved
- We rebuilt the specification around Silicone and locked the tolerance before bulk.
- The finish was moved to Black Nickel 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
- 2,000 pieces delivered inside the 10-week window.
- Unit cost held within 3.0% 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
Keep one accountable owner on both sides. Most delays come from hand-offs, not from machines.
Planning something similar?
Send the reference sample or tech pack and we will come back with a costed specification, a sampling timetable and the compliance documents your market requires.



