Cold / Intermittent work with shelter available
Three-Layer Field System
Base layer, mid layer and shell, with no independent insulation layer. The mid layer carries the active warmth and the shell blocks wind and precipitation, which works for programmes where the wearer moves regularly and can get out of the weather. It is the simplest system to issue and the easiest to keep consistent. The limitation is the static case: once the wearer stops moving, there is no dedicated warmth layer to add, so this composition is the wrong answer for long standing or waiting periods in the coldest conditions a programme expects.
- Moisture-moving base layer, top and bottom
- Fleece or knit mid layer as the active warmth layer
- Wind-resistant or waterproof shell depending on precipitation
- Sizing allowance in the shell for the layers beneath
- Defined combination for moving, resting and indoors




