For premium warmth and comfort in cold-weather conditions, the Browning Merino Wool-Blend Sock can't be beat! The sock is crafted from a heavyweight blend of 65% acrylic, 20% Merino wool, 13% nylon, and 2% spandex fabric. Built-in arch support delivers the perfect fit, while the reinforced heel and toe ensure long-lasting wear. The full-cushioned leg and foot help absorb impact for added comfort underfoot. Made in the USA.