Size: 23-25cm Weight: 29g/pair 1.78% Cotton/Acrylic 70/30 22% Spandex/Nylon and Elastic yarn 2.Good airing, moisture picking-up 3.Softness, luster, smoothness and bulking 4.High stretch Spandex/Nylon resist wear and tear 5.Better in performance, amplexation after adding the Spandex elastic fiber in the socks, good holding for all feet