In a variety of patterns, these fine dress socks are woven in a soft rayon from bamboo blend. Mid-calf. Rayon from bamboo blend front and back socks 59 Rayon, 25 Polyester, 13 Nylon, 3 Spandex. Middle sock 64 Rayon, 27 Polyester, 6 Nylon, 3 Spandex. Natural weave to promote airflow and movement. Spandex throughout for superior fit amp comfort. Reinforced heel and toe. Machine wash. Imported. Jos. A Bank Patterned Dress Socks, 3-Pack