★?Material?70% Rayon from Bamboo, 23% Nylon, 7% Spandex. Extra soft compression socks with cushioned sole. ★?Moisture-wicking】The bamboo socks are moisture wicking, which naturally help reduce discomfort and keep your feet fresh, dry and ultimate comfortable. ★?Relieve Leg Pain】The mild 8-15mmHg graduated compression helps to relieve your weary muscles and reduce the achy sensation. It may aid in prevention and relief of Cramps, Edema (Swelling), Fatigue, Varicose ★?Designed For Everyday Use】The knee high support stockings provide extra support at your ankle to minimize injury, perfect for people that require to be on feet a lot, such as nurses, teachers, police officer, flight attendant, salesmen and so on. ★?Kindly Tips? Bamboo fiber will be much softer after the first wash. We recommend you to wash them with cold water before wearing. The socks may shrink slightly after washing, but will regain their original size and shape after you put them on.