Marvel Mens Captain America Athletic Crew Socks 2 Pair Pack 70% Polyester 20% Nylon 10% Spandex Officially licensed by Marvel Marvel Captain America Mens Athletic Crew Socks 2 Pair Pack Material: 70% Polyester 20% Nylon 10% Spandex Half cushion, supportive fit with arch compression; perfect for Crossfit and other high intensity Fit shoe sizes 6-12