Kestrel Sport Denmark: Yoga and Pilates Studio Programme Climate and Heat Evaluation
Kestrel Sport is a Denmark-based brand whose yoga and pilates studio programme is one of its most demanding programmes. Heat changes how a fabric behaves, so we evaluated the moisture-wicking polyester single jersey in genuinely hot conditions for Kestrel Sport, based in Denmark.

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 | 170 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
Test environment
Sessions ran at 30 to 34 degrees with high humidity, which is the condition where sweat cannot evaporate and complaints begin. Garments were weighed before and after each session to measure retained moisture.
Thermal behaviour
The fabric held moisture management class 4-5, and skin temperature stayed below the control fabric across the session. That difference is what a wearer describes simply as feeling cooler.

Evaluation session with the Kestrel Sport team
Drying after the session
Garments were re-weighed at 30 and 60 minutes. The fabric released most of its moisture within the first half hour, which matters when Kestrel Sport runs back-to-back sessions.
Comfort feedback
Wearers reported less cling and less chafe during mat-based studio sessions and long holds. Both improvements come from moving moisture rather than storing it, which is why construction mattered more than any finish in this test.

Test records and inspection notes for the Yoga and Pilates Studio Programme
Scorecard
| Criterion | Result |
|---|---|
| Heat comfort | 4.8 / 5 |
| Moisture transport | 4.6 / 5 |
| Drying speed | 4.5 / 5 |
| Cling and chafe | 4.7 / 5 |
| Odour control | 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 Denmark
Verdict and recommendation
For hot and humid markets the moisture-wicking polyester single jersey is the right choice, provided the pattern keeps the ventilation zones exactly where we placed them. 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.