Engineered to wick moisture and heat from the surface of the feet. Technical All Season socks are durable, can be worn in all seasons and are recommended to be worn with shoes, combat boots and, for example, GORE-TEX footwear. ESD approved. Mulesing-free merino wool. Composition: 48% polyamide, 34% merino wool, 14% polypropene, 2% elastane and 2% carbon fibre. Machine washable at 40°C, do not tumble dry.