Case Study: Custom Inside Boys Swim Trunk for a Gym Chain in the United Kingdom
Source:Inside Boys Swim Trunk /
Time:2026-09-18
Inside Boys Swim Trunk for a Gym Chain in the United Kingdom
A Gym Chain approached us with a inside boys swim trunk requirement for the United Kingdom. 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
- Suppliers who disappear once the deposit is paid
- No reliable way to track a order once it enters production
- Packaging that arrives crushed and unsellable
What we specified
| Product | Inside Boys Swim Trunk |
|---|---|
| Client type | A Gym Chain |
| Market | the United Kingdom |
| Order volume | 3,000 pieces across 6 colourways |
| Base fabric | Combed Cotton |
| Decoration | Woven Label |
| Size range | XS-3XL |
| Sampling rounds | 3 |
| Delivery window | 5 weeks from PO to ex-factory |
How it was resolved
- We rebuilt the tech pack around Combed Cotton and locked shrinkage allowance before grading.
- Decoration was moved to Woven Label 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 1.5% of the original quotation.
- Return rate linked to fit or workmanship stayed under 1.0%.
- 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?
Send us your tech pack or even a rough sketch — we will come back with fabric options, a costed sample plan and a realistic production calendar.
