Kestrel Sport Finland: Martial Arts and Grappling Range Durability and Abrasion Evaluation
Kestrel Sport is a Finland-based brand whose martial arts and grappling range is one of its most demanding programmes. Abrasion is the most common reason a technical garment is retired. We evaluated the compression warp knit against the contact surfaces found in martial arts and grappling range.
Kestrel Sport: Compression Warp Knit in use during grappling and repeated mat contact
Evaluation background
The programme covers training tops, shorts and rash guards, used for grappling and repeated mat contact. The environment is high friction and frequent industrial laundering and the requirement written into the brief was tear strength with antibacterial protection. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Compression Warp Knit |
| Composition | 72% nylon / 28% spandex |
| Weight | 240 GSM |
| Width | 165 cm |
| Primary function | delivers graduated support that stays measurable over time |
| Target | recovery above 92% after repeated extension |
| Test method | ASTM D2594 |
| Additional note | power held in the 18-25 N band |
| Certification | OEKO-TEX Standard 100 |
Compression Warp Knit close-up showing the fabric surface
Method
Fabric was abraded to ASTM D4966 against both a standard wool abradant and the actual contact surface used in grappling and repeated mat contact. Seam strength was tested to ISO 13936-2 in parallel.
Results
The fabric passed the agreed cycle count with no yarn breakage and seam opening stayed inside the 6 mm limit. Pilling remained at grade 4 or above at the end of the test.
Evaluation session with the Kestrel Sport team
Where wear appeared
Any surface change appeared first under high friction and frequent industrial laundering, which is expected and is why we recommend panel placement rather than a single fabric across the whole garment.
Service life estimate
On this data the garment should complete a full competitive season before appearance becomes a reason to replace it, which is the commercial target Kestrel Sport set at the start.
Test records and inspection notes for the Martial Arts and Grappling Range
Scorecard
| Criterion | Result |
|---|---|
| Abrasion cycles | 4.7 / 5 |
| Pilling grade | 4.4 / 5 |
| Seam strength | 4.8 / 5 |
| Appearance | 4.6 / 5 |
| Estimated service life | 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 Finland
Verdict and recommendation
Durability is sufficient for the intended use. Keep the current construction and revisit only if the garment moves into a higher abrasion category. For Kestrel Sport the practical next steps are to keep the current specification for the repeat, retain the shade standard, and issue ASTM D2594 results with every lot so any claim can be supported with data.
