Liner is a thin Merino wool sock specially developed as a liner to be worn under another sock. The 2-sock system reduces the risk of blisters and also provides extra insulation. Liner is soft and comfy, with Friction Free reinforced toe and heel for long wear. Regulates temperature and wicks away moisture. This makes it the right sock for any activity, winter or summer. Calf height. Use as a first layer under warmer socks For hiking and skiing all year round Temperature regulating og comfortably soft Materials 58% Merino wool, 34% polyamide, 2% Friction free , 6% elastane