Socksmith Womens Math Cotton,Lycra,Nylon,Spandex Imported Socksmith&reg; Math socks are the smartest purchase you've ever made. Sold as a one-pair pack. Crew-cut style sits at the calf. Math equations print throughout. Self-adjusting welt cuff. Ribbed cuff. Elastic arch support. Deep heel pocket. Y-stitch heel. Reinforced toe and heel. 63% cotton, 34% nylon, 3% lycra&reg; spandex. Machine wash cold, tumble dry low. Imported.