PRODUCT INDEXGOLDWIN MOTION STUDIES
Voxeloft Trail Jacket Index

Interactive model for visualization of temperature change at various elevations along the race course and how insulation prevents unnecessary energy expenditure.

Key Insight

Underdressing and overdressing carry asymmetric costs. Cold exposure raises energy expenditure by up to 34% through thermogenesis, as the body generates and retains heat. Heat exposure raises expenditure by 5% at rest.

21°C
Valley Temp
21.0°C
Temp On Course
500m1000m1500m2000m2500m3000m030 km60 km90 km120 km150 km180 km
0 km
Distance
1043m
Elevation
Chamonix (start)
Checkpoint
Course Position0%
Insulation Thickness Level
Comfortable
+0%
Body Condition
Expenditure
Insulation response modeled on Goldwin Tech Lab thermal simulation data. Energy cost modeled on cold-exposure field research (NOLS / Ocobock, 2017) and heat-exposure research (Millet et al., 2021). Not measured or precise figures.