SmartWool Women's PhD Outdoor Light Crew Socks 58% Merino Wool, 39% Nylon, 3% Elastane Made in USAof Imported Yarn Virtually Seamless toe 7.5" overall height Sock Height: Crew Style:SW001311 Care: Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.