Kestrel Sport Switzerland: Basketball Club Warm-Up Range Climate and Heat Evaluation
Kestrel Sport is a Switzerland-based brand whose basketball club warm-up range is one of its most demanding programmes. Heat changes how a fabric behaves, so we evaluated the bonded softshell knit in genuinely hot conditions for Kestrel Sport, based in Switzerland.
Kestrel Sport: Bonded Softshell Knit in use during court warm-ups and travel days
Evaluation background
The programme covers warm-up suits, shorts and shooting shirts, used for court warm-ups and travel days. The environment is indoor heat with repeated washing between fixtures and the requirement written into the brief was shape retention through a long competitive season. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Bonded Softshell Knit |
| Composition | polyester face bonded to a TPU membrane |
| Weight | 320 GSM |
| Width | 170 cm |
| Primary function | blocks wind while still allowing vapour to escape |
| Target | water vapour resistance below 6 m2Pa/W |
| Test method | ISO 11092 |
| Additional note | bond strength above 15 N after washing |
| Certification | OEKO-TEX Standard 100 |
Bonded Softshell Knit 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 water vapour resistance below 6 m2Pa/W, 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 court warm-ups and travel days. 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 Basketball Club Warm-Up Range
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 Switzerland
Verdict and recommendation
For hot and humid markets the bonded softshell knit 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 ISO 11092 results with every lot so any claim can be supported with data.
