Provides durability & moisture wicking benefits, 70% Mag-Dry™ Performance Polyester, Ventilation panels help foot breathe, Selective cushioning provides targeted comfort without increasing thickness, Elasticised arch support to secure sock in place, Comfort toe seam helps eliminate irritations, Fabric content: 70% Mag-Dry™ Polyester, 27% Nylon, 3% Lycra® Spandex, Recommended care: Machine wash warm, tumble dry low, do not bleach, Made in USA,