What is a characteristic feature of specific alpine technical clothing?

Specific alpine technical clothing is characterized by the use of water-resistant materials, such as Gore-tex fabric. This material allows for both breathability and protection against water, making it ideal for high-altitude activities where exposure to moisture from precipitation or snow can be prevalent. Gore-tex works by using a membrane that prevents water from getting in while allowing sweat and moisture vapor to escape, ensuring the wearer stays dry and comfortable during strenuous outdoor activities.

Other materials mentioned, such as insulation for warmth, are also important but are more general features of clothing designed for cold environments rather than specific alpine technical gear. Similarly, shearling lining provides comfort and warmth but does not meet the specific needs of an alpine environment where weather unpredictability necessitates the use of advanced, water-resistant technology. Lightweight cotton material, while comfortable, is not suitable for alpine conditions since it does not provide the necessary water resistance and can become heavy and damp when wet.