Lumenfield Switzerland: Trail Running Programme Cost and Performance Evaluation
Lumenfield is a Switzerland-based brand whose trail running programme is one of its most demanding programmes. This evaluation answers the commercial question behind the trail running programme programme for Lumenfield: does the performance justify the price?

Lumenfield: Graphene Cooling Knit in use during long off-road efforts on mixed terrain
Evaluation background
The programme covers trail shorts, technical tees and light shells, used for long off-road efforts on mixed terrain. The environment is mud, grit, wind and rapid weather changes and the requirement written into the brief was abrasion resistance with fast drying after stream crossings. Fabric was selected on that basis rather than on price alone.
Fabric under evaluation
| Parameter | Value |
|---|---|
| Fabric | Graphene Cooling Knit |
| Composition | 90% polyester / 10% spandex with graphene filament |
| Weight | 170 GSM |
| Width | 165 cm |
| Primary function | gives an instant cool touch and spreads heat away from the body |
| Target | Q-max above 0.20 W/cm2 |
| Test method | Q-max contact cool feeling measurement |
| Additional note | far infrared emissivity above 0.88 |
| Certification | OEKO-TEX Standard 100 |

Graphene Cooling Knit close-up showing the fabric surface
Cost structure
The fabric adds a defined amount per garment, with testing and documentation included. Against the retail price of the product the impact on margin is small and predictable.
Performance delivered
The measured result is Q-max above 0.20 W/cm2 against Q-max contact cool feeling measurement. That is the value the customer pays for, and it is the element that can be defended in a product page claim.

Evaluation session with the Lumenfield team
Risk avoided
The comparison that matters is not fabric to fabric but season to season. The previous year carried a return rate driven by complaints under mud, grit, wind and rapid weather changes, and that cost dwarfed the fabric premium.
Commercial outcome
The programme launched on time, sold through as planned and moved into repeat. Two further colourways were added without new development cost, because the recipe was already documented.

Test records and inspection notes for the Trail Running Programme
Scorecard
| Criterion | Result |
|---|---|
| Performance per cost | 4.4 / 5 |
| Claim support | 4.9 / 5 |
| Return risk | 4.5 / 5 |
| Development cost | 4.7 / 5 |
| Repeat potential | 4.3 / 5 |
“Fifty washes later the fabric still performs. That is what convinced our buying team.” — Lumenfield Technical Team

Packed bulk rolls before shipment to Switzerland
Verdict and recommendation
The graphene cooling knit delivers measurable value for its cost. We recommend keeping it in the range and extending it into adjacent styles. For Lumenfield the practical next steps are to keep the current specification for the repeat, retain the shade standard, and issue Q-max contact cool feeling measurement results with every lot so any claim can be supported with data.