Kestrel Sport Norway: Yoga and Pilates Studio Programme Laboratory Test Report
Kestrel Sport is a Norway-based brand whose yoga and pilates studio programme is one of its most demanding programmes. This report documents the laboratory qualification of the moisture-wicking polyester single jersey supplied to Kestrel Sport for its yoga and pilates studio programme. Every figure below was produced on bulk fabric, not on an approval swatch.
Kestrel Sport: Moisture-Wicking Polyester Single Jersey in use during mat-based studio sessions and long holds
Evaluation background
The programme covers leggings, crop tops and studio shorts, used for mat-based studio sessions and long holds. The environment is warm, humid studios with sustained low-load stretch and the requirement written into the brief was a soft hand with full coverage through every pose. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Moisture-Wicking Polyester Single Jersey |
| Composition | 88% polyester / 12% spandex |
| Weight | 170 GSM |
| Width | 175 cm |
| Primary function | moves sweat to the outer face so it can evaporate |
| Target | moisture management class 4-5 |
| Test method | AATCC 195 |
| Additional note | one-way transport index above 300 |
| Certification | OEKO-TEX Standard 100 |
Moisture-Wicking Polyester Single Jersey 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 195, 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 moisture management class 4-5, with one-way transport index above 300. 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 yoga and pilates studio programme the relevant result is that the fabric keeps moves sweat to the outer face so it can evaporate after conditioning, which is what protects the wearer during mat-based studio sessions and long holds.
Test records and inspection notes for the Yoga and Pilates Studio Programme
Scorecard
| Criterion | Result |
|---|---|
| Primary function | 4.7 / 5 |
| Dimensional change | 4.4 / 5 |
| Pilling grade | 4.8 / 5 |
| Colour fastness | 4.6 / 5 |
| Consistency | 4.5 / 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 moisture-wicking polyester single jersey. For Kestrel Sport the practical next steps are to keep the current specification for the repeat, retain the shade standard, and issue AATCC 195 results with every lot so any claim can be supported with data.
