Case Study: Custom Joma Training Wear for a Marathon Organizer in South Korea
Source:Joma Training Wear /
Time:2026-09-18
Joma Training Wear for a Marathon Organizer in South Korea
A Marathon Organizer approached us with a joma training wear requirement for South Korea. 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
- Inconsistent sizing between production runs
- Color drift between lab dips and bulk fabric
- Long lead times that miss the selling season
What we specified
| Product | Joma Training Wear |
|---|---|
| Client type | A Marathon Organizer |
| Market | South Korea |
| Order volume | 800 pieces across 6 colourways |
| Base fabric | Faux Leather PU |
| Decoration | Custom Drawcord |
| Size range | Custom grading |
| Sampling rounds | 3 |
| Delivery window | 12 weeks from PO to ex-factory |
How it was resolved
- We rebuilt the tech pack around Faux Leather PU and locked shrinkage allowance before grading.
- Decoration was moved to Custom Drawcord 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
- 800 pieces delivered inside the 12-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.
