Case Study: Custom Inside Boys Swim Trunk for an Amazon Private Label Seller in France
Source:Inside Boys Swim Trunk /
Time:2026-09-18
Inside Boys Swim Trunk for an Amazon Private Label Seller in France
An Amazon Private Label Seller approached us with a inside boys swim trunk 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
- Unclear responsibility when a defect shows up after washing
- No reliable way to track a order once it enters production
- Inconsistent sizing between production runs
What we specified
| Product | Inside Boys Swim Trunk |
|---|---|
| Client type | An Amazon Private Label Seller |
| Market | France |
| Order volume | 800 pieces across 6 colourways |
| Base fabric | Velvet |
| Decoration | Smocking |
| Size range | S-4XL |
| Sampling rounds | 2 |
| Delivery window | 6 weeks from PO to ex-factory |
How it was resolved
- We rebuilt the tech pack around Velvet and locked shrinkage allowance before grading.
- Decoration was moved to Smocking 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 6-week window.
- Unit cost held within 2.0% of the original quotation.
- Return rate linked to fit or workmanship stayed under 0.5%.
- 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.
