"Thermal protectation in a value 2-pack for work wear Premium blend of wool and acrylic keeps feet warm and wicks moisture away from skin Fully thermalined for shock absorption and insulation Nylon reinforced for extended wear Smooth linear looped toe seam for no irritation at toes Mid-calf Heavy weight Contents: 66% acrylic, 22% wool, 11% nylon, 1% Lycra? spandex"