Description Smartwools 2 Degree fit system gives you a comfortable fit thanks to the elasticized arch and a flat knit toe seam helps keep toes happy all day long. Put on a pair of these durable wool athletic socks and enjoy this retro look with all the modern comfort you'd expect from Smartwool. Features Sock Height: Crew Flat knit toe seam for additional comfort Reinforced sole for additional durability Made in USA of Imported Yarn: 59% Merino Wool, 39% Nylon, 2% Elastane Care Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.