Trailhead Union Portugal: Medical Compression and Recovery Wear Wash Durability Evaluation
Trailhead Union is a Portugal-based brand whose medical compression and recovery wear is one of its most demanding programmes. Durability is where most functional claims fail. We washed the compression warp knit fifty times under domestic conditions and re-measured after every ten cycles for Trailhead Union.

Trailhead Union: Compression Warp Knit in use during recovery wear worn for long periods
Evaluation background
The programme covers recovery tights, sleeves and support tops, used for recovery wear worn for long periods. The environment is continuous graduated pressure against the skin and the requirement written into the brief was measured compression with skin-safe materials. 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 | 230 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
Washing ran at 30 degrees with a standard reference detergent and no softener, then tumble dried on low. This mirrors what customers actually do rather than what a care label optimistically suggests.
Performance by cycle
The fabric started at recovery above 92% after repeated extension and held above 90% of that value through 30 cycles. The decline after cycle 40 was gradual, which is the behaviour we want: a slow change, not a sudden failure.

Evaluation session with the Trailhead Union team
Appearance
Pilling stayed at grade 4 or above and there was no visible shade shift against the retained reference. Surface comfort after washing mattered most to Trailhead Union, so hand was scored by a panel at every interval.
Conclusion on service life
On this evidence the garment keeps its function for a full retail season of weekly washing, and ASTM D2594 remains a valid claim for that period.

Test records and inspection notes for the Medical Compression and Recovery Wear
Scorecard
| Criterion | Result |
|---|---|
| Function after 30 washes | 4.6 / 5 |
| Appearance retention | 4.8 / 5 |
| Pilling grade | 4.3 / 5 |
| Hand retention | 4.5 / 5 |
| Shade | 4.6 / 5 |
“Development was transparent from the first sample and bulk matched the approval exactly.” — Trailhead Union Technical Team

Packed bulk rolls before shipment to Portugal
Verdict and recommendation
Fifty cycles is a reasonable service life for this product class, and the compression warp knit stayed inside tolerance throughout. Care wording should be printed exactly as tested. For Trailhead Union 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.