Kestrel Sport Norway: Football Academy Training Kit Laboratory Test Report
Kestrel Sport is a Norway-based brand whose football academy training kit is one of its most demanding programmes. This report documents the laboratory qualification of the recycled nylon interlock supplied to Kestrel Sport for its football academy training kit. Every figure below was produced on bulk fabric, not on an approval swatch.
Kestrel Sport: Recycled Nylon Interlock in use during daily squad training in all weather
Evaluation background
The programme covers training shirts, shorts and warm-up tops, used for daily squad training in all weather. The environment is contact, sliding and heavy perspiration and the requirement written into the brief was tear resistance with colour consistency across a squad. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Recycled Nylon Interlock |
| Composition | 78% GRS recycled nylon / 22% spandex |
| Weight | 270 GSM |
| Width | 160 cm |
| Primary function | stays fully opaque under tension while carrying a recycled claim |
| Target | opacity above 96% at 30% extension |
| Test method | AATCC 183 |
| Additional note | GRS chain of custody documents |
| Certification | OEKO-TEX Standard 100 |
Recycled Nylon Interlock close-up showing the fabric surface
Samples and conditioning
Three bulk lots were sampled at random and conditioned for 24 hours before testing. Results are reported as the worst of the three, which is the number a brand should plan around.
Test methods
The primary method was AATCC 183, supported by dimensional change to AATCC 135, pilling to ISO 12945-2 and colour fastness to ISO 105-C06.
Evaluation session with the Kestrel Sport team
Results
The fabric reached opacity above 96% at 30% extension, with GRS chain of custody documents. All supporting tests passed the agreed limits, and the report carries the lot numbers so the results can be reproduced.
Interpretation
Numbers only matter against the use case. For football academy training kit the relevant result is that the fabric keeps stays fully opaque under tension while carrying a recycled claim after conditioning, which is what protects the wearer during daily squad training in all weather.
Test records and inspection notes for the Football Academy Training Kit
Scorecard
| Criterion | Result |
|---|---|
| Primary function | 4.8 / 5 |
| Dimensional change | 4.6 / 5 |
| Pilling grade | 4.5 / 5 |
| Colour fastness | 4.7 / 5 |
| Consistency | 4.4 / 5 |
“Fifty washes later the fabric still performs. That is what convinced our buying team.” — Kestrel Sport Technical Team
Packed bulk rolls before shipment to Norway
Verdict and recommendation
The bulk fabric met every agreed target. The lot is released and we recommend repeating the same test set on each future delivery of the recycled nylon interlock. For Kestrel Sport the practical next steps are to keep the current specification for the repeat, retain the shade standard, and issue AATCC 183 results with every lot so any claim can be supported with data.
