85% combed cotton 10% nylon 5% spandex Imported Machine wash cold, tumble dry low. Pack of 3 pairs padded quarter crew combed cotton anti odor socks with breathable mesh on the top of foot. Super soft cushion protects feet from injury and absorb sweat quickly to keep your feet dry. Silver fiber is blended in the Compact-Siro spinned cotton yarn to provide never wash off anti odor effect and keep you away from smelly feet. Full refund if no effect! Elastic arch support provides snug fit and keeps the socks in position in walking, hiking, running and other sports activities. With high quality nylon and spandex, the socks have great stretchability. They fit men’s shoes size 6 to 12 and Women’s shoes size 7-13.