Nike Matchfit OTC SockProduct Code: SX6836PROFESSIONAL MATCHDAY FIT. Dri FIT technology helps keep feet dry and comfortable. Cushioning in high wear areas helps absorb impact. Dynamic arch provides a supportive fit and feel. Anatomical left and right socks are designed for a natural fit. Fabric: 78% nylon, 14% cotton, 4% polyester, 4% Spandex.