Falke TK1 socks have a maximum density filling. Blended with merino wool, these Falke TK1 hiking socks provide maximum protection and superior thermal insulation during long mountain hikes, in all weather conditions. Fast moisture transfer and perfect fit give your feet an ideal temperature and superior comfort.Features:- Regulates humidity- Cushioning effect- Faster drying- Heating effectMaterial:- 42% polypropylene, 25% acrylic, 20% wool, 12% polyamide, 1% elastaneTechnology:- Merino Wool:Merino wool is one of the most appreciated fabrics for its quality and characteristics. Merino wool is obtained mainly from Merino sheep originating in New Zealand. This breed of sheep is found in many corners of the world, however the wool is recovered from the natural sheep of that country. The difference between these Merino sheep and those from the rest of the world is the skin, which is thicker to protect against extreme weather conditions.