Sockwell Men's Sport Crew 2-Pack Socks 100% Other Fibers Made in the USA and Imported 36% Merino Wool,36% Coolmax,23% Stretch Nylon,6% Spandex Turn welt top and instep vent panel Reinforced Hi-heel and flat toe seam Machine wash warm, turn sock inside out. Tumble dry low. Do not bleach. Made in the USA