20106 is a thin sock in durable polyamide for maximum durability and ventilation. Equipped with air channels on the top that keep the foot dry and cool. Strong synthetic reinforcement under the foot pad and heel for increased durability. Perfect sock for those who have active working days and tend to wear out their regular socks quickly. Use it as a liner sock on cold days, in combination with thick wool socks. Functional knitting and soft elastic mean that it sits comfortably on the foot throughout the working day. Öko-Tex certified. Washing instructions: 40°C, should not be tumble dried. Material: 98% Polyamide, 2% Lycra.