A perennial favorite among SmartWool enthusiasts, the Saturnsphere Crew Sock keeps your feet warm, dry, and comfortable all day long. This cushioned crew sock incorporates SmartWool's WOW Technology into its reinforced sole to maximize durability and performance. The supportive arch brace offers added fit and even greater comfort. The Saturnsphere Crew Sock is constructed from a rugged blend of 75% Merino wool, 24% nylon, and 1% elastane fabric. Made in the USA.