Case Study: Custom Inside Boys Swim Trunk for a Railway Operator in Argentina
Source:Inside Boys Swim Trunk /
Time:2026-09-18
Inside Boys Swim Trunk for a Railway Operator in Argentina
A Railway Operator approached us with a inside boys swim trunk requirement for Argentina. 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
- Minimum order quantities far above what a growing brand can absorb
- Packaging that arrives crushed and unsellable
What we specified
| Product | Inside Boys Swim Trunk |
|---|---|
| Client type | A Railway Operator |
| Market | Argentina |
| Order volume | 3,000 pieces across 6 colourways |
| Base fabric | Spandex |
| Decoration | Applique Embroidery |
| Size range | S-4XL |
| Sampling rounds | 2 |
| Delivery window | 5 weeks from PO to ex-factory |
How it was resolved
- We rebuilt the tech pack around Spandex and locked shrinkage allowance before grading.
- Decoration was moved to Applique Embroidery 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
- 3,000 pieces delivered inside the 5-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
Fix the size ratio early. Changing the ratio after cutting starts is the single most expensive change a client can request.
Planning something similar?
Tell us the quantity, target price and delivery window, and we will build a customisation programme around those three numbers.
