Men's thick, sweat-wicking socks. Hardworking feet deserve hardworking socks. These men's socks are made of a durable wool and acrylic blend that wicks away sweat and provide cushioned comfort inside your boots. Mesh panels provide ventilation, and Nanoglide(R) reinforcement reduces friction and adds durability. Brown: 31% acrylic / 30% polyester / 20% nylon / 14% wool / 2% spandex / 3% other; Fiber Grey: 35% polyester / 30% acrylic / 17% nylon / 13% wool / 2% spandex / 3% other fiber; Navy: 32% polyester / 31% acrylic / 20% nylon / 13% wool / 1% spandex / 3% other fiber. FastDry(R) technology wicks sweat and fights odors. Nanoglide(R) reinforcement reduces blister-causing friction. Mesh cooling panels and instep channels promote airflow. Reinforced arch adds stability and holds the sock in place.