Lumenfield Denmark: Tennis Academy Kit Laboratory Test Report
Lumenfield is a Denmark-based brand whose tennis academy kit is one of its most demanding programmes. This report documents the laboratory qualification of the power mesh warp knit supplied to Lumenfield for its tennis academy kit. Every figure below was produced on bulk fabric, not on an approval swatch.

Lumenfield: Power Mesh Warp Knit in use during daily court training and match play
Evaluation background
The programme covers polo shirts, skirts and dresses, used for daily court training and match play. The environment is direct sun with repeated lateral movement and the requirement written into the brief was sun protection with a clean structured appearance. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Power Mesh Warp Knit |
| Composition | 85% nylon / 15% spandex |
| Weight | 150 GSM |
| Width | 175 cm |
| Primary function | gives controlled support with maximum air exchange |
| Target | air permeability above 400 mm/s |
| Test method | ISO 11092 |
| Additional note | ventilation mapped onto the pattern |
| Certification | OEKO-TEX Standard 100 |

Power Mesh Warp Knit 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 ISO 11092, supported by dimensional change to AATCC 135, pilling to ISO 12945-2 and colour fastness to ISO 105-C06.

Evaluation session with the Lumenfield team
Results
The fabric reached air permeability above 400 mm/s, with ventilation mapped onto the pattern. 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 tennis academy kit the relevant result is that the fabric keeps gives controlled support with maximum air exchange after conditioning, which is what protects the wearer during daily court training and match play.

Test records and inspection notes for the Tennis Academy Kit
Scorecard
| Criterion | Result |
|---|---|
| Primary function | 4.6 / 5 |
| Dimensional change | 4.8 / 5 |
| Pilling grade | 4.3 / 5 |
| Colour fastness | 4.5 / 5 |
| Consistency | 4.6 / 5 |
“Fifty washes later the fabric still performs. That is what convinced our buying team.” — Lumenfield Technical Team

Packed bulk rolls before shipment to Denmark
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 power mesh warp knit. For Lumenfield the practical next steps are to keep the current specification for the repeat, retain the shade standard, and issue ISO 11092 results with every lot so any claim can be supported with data.