Case Study: Custom Shank Button for a Military Supply Contractor in Colombia
Source:Dried Lavender Bundles /
Time:2026-09-18
Shank Button for a Military Supply Contractor in Colombia
A Military Supply Contractor approached us with a shank button requirement for the Colombia 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
- An interlining that bubbled after the first press
- A zipper puller that broke under pull test at the warehouse
- Shrinkage that only showed up after the first wash
What we specified
| Item | Shank Button |
|---|---|
| Client type | A Military Supply Contractor |
| Market | Colombia |
| Order volume | 50,000 pieces across 3 specifications |
| Base material | Polyester |
| Standard size | 6 mm Width |
| Finish | Black Nickel Finish |
| Sampling rounds | 3 |
| Delivery window | 5 weeks from PO to ex-factory |
| Compliance | GRS |
How it was resolved
- We rebuilt the specification around Polyester and locked the tolerance before bulk.
- The finish was moved to Glossy Enamel Coating 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
- 50,000 pieces delivered inside the 5-week window.
- Unit cost held within 4.5% of the original quotation.
- Inspection-related rejection stayed under 1.5%.
- The specification is now on file, so reorders reproduce the approved sample.
What we would repeat
Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.
Planning something similar?
Share the programme details and we will propose two alternatives — one optimised for unit cost, one for lead time — and let you choose.
