In a variety of patterns, these fine dress socks are woven in a soft rayon from bamboo blend. Mid-calf. Natural weave to promote airflow and movement. Spandex throughout for superior fit comfort. Reinforced heel and toe. 76 rayon from bamboo, 18 polyester, 2 spandex, 4 other fiber. Machine washable. Imported. Jos. A. Bank Rayon Blend Dress Socks, 3-Pack