FoxRiver Norwegian Mid-Calf Wool Boot Socks 85% Wool/14% Nylon/1% Spandex Made in US These Heavyweight socks is made of Classic ragg wool has been keeping hikers Warm and comfortable for centuries Our technical know-how adds performance and cold weather durability while retaining that Classic ragg look Stretch nylon core helps these Classic wool socks retain shape, wash after wash Wool socks provide natural insulation that keeps your feet Warm for any adventure Heavyweight wool but breathable-knit construction keeps feet Dry and comfortable; made in the USA