ASICS Kayano Wool Low Cut Running Socks Nylon 93%/ Lycra 7% Imported 84% Nylon/14.1 Merino Wool/ 1.9% Elastane Anatomically correct left and right foot construction and high density cushioning Articulated arch band for better fit and ASICS exclusive ankle fit Flexible horizontal lace pad cushioning. "Y" heel gore for improved fit, reducing slippage. Low Profile design