Papi Men's Argyle Tonal Placement Socks Front, Middle, Back: 82% Cotton/14% Polyester/3% Nylon/1% Spandex; 73% Cotton/ 25% Polyester/1% Nylon/1% Spanex; 73% Cotton/ 26% Polyester/ 1% Spandex (exclusive Of Elastic) Machine Wash Half-Cushion Comfort stretch Cotton rich blend Spandex for better stretch and fit