One premium-quality pair that's always ready to work. These midweight performance socks are constructed with naturally odor-resistant Merino wool that's been engineered to regulate foot temperature. Arch support reduces foot fatigue while reinforced zones deliver durability. Comfortable seamless toe Temperature regulating for all season comfort Naturally odor resistant Merino wool Arch support to reduce foot fatigue Reinforced zones for durability 64% Merino wool, 33% nylon, 3% LYCRA® Spandex Made in the USA of imported and domestic materials