Hardworking feet deserve hardworking socks. These socks are made of a durable woolacrylic blend that wicks away sweat. Mesh panels provide ventilation, and Nanoglide reinforcement reduces friction and adds durability. 43% polyester 27% nylon 16% acrylic 10% merino wool 3% rayon 1% spandex. FastDry technology wicks sweat and fights odors. Mesh cooling panels promote airflow. Reinforced arch and spandex add stability and holds the sock in place. Machine wash . Imported.