40% Bamboo, 40% Cotton, 17% Nylon, 3% Spandex. Fabric: Stretch. Design: Acorn, Argyle, Dotted, Leaves, Logo, Repeat Print, Squirrel. Fabric Technology: Anti-Bacterial, Moisture Wicking. Breathable. Cuff: Contrast. Contrast Heel, Contrast Toe, Padded.