Dominate the opposition with the comfort and support of our Black Kappa Sigma Performance sock. With strategic multi-density cushioning, this sock absorbs shock and maximizes cushioning with every wear. To keep you cool when the pressure is on the anti-microbial fabric wicks moisture. For durability, the our sock comes with a reinforced heel and toe, ensuring you're ready every time you put them on. And the midfoot compression fit keeps socks and cushioning in place. One size fits most (shoe size 10-13). 65% Polypropolene, 15% Spandex, 8% Stacool Polyetser, 6% Endurall & 6% Nylon.