Lycra,Mesh,Nylon,Polyester,SpandexMade in USAThe Wrightsock? Running II Tab is a mesh of breathable fabric and soft cushioning for a complete wear all-day!Sold as a one-pair pack.Low-cut style sits below ankle.Achilles tab is ideal for in-sneaker wear.Dri-WRIGHT? II moisture-managing fibers help feet stay cooler and drier. Double Layer construction is both lightweight and minimal for optimal comfort. Mesh panel at top of foot for enhanced breathability. Heel tab prevents blistering. Stabilizer Zone in arch. Low-profile toe seam. Inner Layer: 70% polyester, 26% nylon, 4% Lycra? spandex;Outer Layer: 68% polyester, 24% nylon, 8% Lycra? spandex. Machine wash warm, tumble dry low. Made in the USA.