Made from wool and Hollofil, these socks are perfect for cool and cold weather adventures. Contoured rib top holds in place to eliminate slippage. Smooth, flat toe seam adds comfort and durability. Fully thermalined for shock absorption and insulation. Wool naturally wicks away moisture to keep you dry. 35% wool, 31% Hollofil polyester, 26% acrylic, 7% nylon, 1% spandex. Mid-calf, heavyweight.