You are properly dressed in winter if you follow the onion principle. The individual pieces of clothing are pulled on top of each other, similar to the individual layers of an onion. For outdoor sports, three layers are usually sufficient. You just have to combine them well. Ideal combination, for example: synthetic functional underwear (absorbs sweat, otherwise you would easily catch a cold in winter), merino sheep’s wool sweater, wind jacket. But you also need to protect your hands and feet.
Cold weather? – Cycling gloves: even in winter you can ski like crazy
