Ironroot Performance Switzerland: Ski and Snowboard Base Layers Comfort and Fit Evaluation
Ironroot Performance is a Switzerland-based brand whose ski and snowboard base layers is one of its most demanding programmes. Performance data means nothing if the garment is uncomfortable. This evaluation covers how the brushed thermal knit behaves on the body during ski and snowboard base layers work.
Ironroot Performance: Brushed Thermal Knit in use during long days on the mountain
Evaluation background
The programme covers base layer tops, leggings and neck gaiters, used for long days on the mountain. The environment is cold air with high exertion and sudden stops and the requirement written into the brief was warmth without bulk and no clamminess on the lift. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Brushed Thermal Knit |
| Composition | 92% polyester / 8% spandex, brushed back |
| Weight | 300 GSM |
| Width | 170 cm |
| Primary function | traps warm air without adding weight |
| Target | thermal resistance above 0.08 m2K/W |
| Test method | ISO 11092 |
| Additional note | warmth held after 30 washes |
| Certification | OEKO-TEX Standard 100 |
Brushed Thermal Knit close-up showing the fabric surface
Fit assessment
Size sets were fitted on live models and on a fit form. Fabric extension was measured at the stress points so the pattern could be corrected before bulk cutting.
Movement testing
Wearers performed the movements specific to long days on the mountain while panel tension was observed. No restriction was reported and recovery between movements was immediate.
Evaluation session with the Ironroot Performance team
Next-to-skin comfort
Surface friction, hand and temperature sensation were scored by the panel. The fabric scored best where warmth without bulk and no clamminess on the lift, which is the priority Ironroot Performance set for this product.
Fit retention
Garments were measured after five and twenty washes. Growth stayed within tolerance, so the fit approved in sampling is the fit the customer eventually receives.
Test records and inspection notes for the Ski and Snowboard Base Layers
Scorecard
| Criterion | Result |
|---|---|
| Next-to-skin feel | 4.8 / 5 |
| Freedom of movement | 4.6 / 5 |
| Recovery | 4.5 / 5 |
| Fit retention | 4.7 / 5 |
| Seam comfort | 4.4 / 5 |
“Our athletes noticed the difference in the first week, and the test data explained why.” — Ironroot Performance Technical Team
Packed bulk rolls before shipment to Switzerland
Verdict and recommendation
Comfort and fit were confirmed in wear, and the brushed thermal knit is approved for bulk with the current pattern. For Ironroot Performance 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.
