Understanding the Thermal Dynamics of Movement
The fundamental rule of cold-weather mountaineering is simple: You don’t dress for how cold it is when standing still; you dress for how warm you will become when moving.
The Three Vital Layers
- Base Layer: 200–250 gsm Merino wool or hydrophobic synthetic weave.
- Mid Layer: 800+ fill goose down or high-loft grid fleece.
- Outer Shell: 3-layer Gore-Tex Pro with helmet-compatible hood.
