Soft Merino wool fibers keep you itch-free while Wick Dry?? technology draws moisture away from your skin. Long lasting construction adds durability. Knit to keep its shape and fit better. Smooth, flat comfort toe seam. Fox River's unique blend of yarns add color and style. 47% Merino wool, 47% acrylic, 5% nylon, 1% spandex. Heavyweight.