54% polyester/12% spandex/8% nylon/26% rubber Pull On closure These athletic socks are very good tight fit on your foot, a snug fit and a medium thickness. Reinforced toe and heel that helps prevent the sock from slipping into your shoes. Excellent for swelling feet and a good alternative to the thigh high compression socks. 1/4 lengh ankle high silhouette, strategic cushioning at key zones for shock absorption and targeted comfort. For running, jogging, hiking, walking, workout, cross-training, cycling, runners workers, and daily use.