Everyday wool crew sock for everyday use with an integrated Olefin liner for the ultimate in dry-lined comfort. Because the liner is fully integrated with the outer fabric, we are able to achieve enough "give" in the sock to reduce friction and are able to increase the effective moisture movement properties of the fabric. 1x1 true rib top. 3x1 mock rib leg. Lightweight jersey sole. Ultra smooth lin-toe closure. Content: Outer Layer: 100% Olefin - Inner Layer: 38% Merino Wool, 38% Stretch Nylon, 18% 4-Channel Polyester, 6% Spandex