To dress properly in winter, whatever your activity, we recommend using the 3-layer principle:
layer 1: The high-tech base layer transfers moisture away from the body to keep your skin dry.
layer 2: The second layer (fleece, sweater) provides warmth and transfers moisture outwards.
layer 3: The jacket protects you from the outdoor conditions: rain, snow, wind.
The whole outfit must be breathable in order to eliminate moisture.