The sock made of a functional merino & acrylic blend. The technical trekking socks with merino yarns also optimally compensate for low temperatures in the shoe. The 2-layer construction with bioceramic yarns directly on the skin and ergonomic ventilation channels ensure a perfect climate in the shoe. Anatomically designed pads and a reinforced heel and toe optimize the hold in the shoe and protect against chafing and blistering. The merino wool used is mulesing-free. Basic structure of socks Anatomically designed cushions and extra reinforced heel and toe optimize the hold in the shoe and protect the foot from chafing and blistering. Comfort band Ventilation ducts Padding Pressure-free seam Abrasion-free and padded toe and heel Anti-slip construction Flexible shaft Ergonomic fit L/R Flexchannels for foot length Flexchannels for foot width Material:24% wool (merino)24% polyacrylic21% polyamide15% polyester (BioCeramic)13% polypropylene3% elastane