The CEP Core Run Tall Compression Socks are designed for all types of running. Manufactured in Germany using circular knitting technology, they guarantee a high level of compression and activation with benefits such as increased blood circulation, greater energy conservation, and muscles that stay fresher longer during training. The shock-absorbing anatomical padding and 3D anti-slip technology provide enhanced comfort and control. Strategic mesh zones and air channels along with moisture-wicking material offer optimal heat and moisture regulation. Sizing note: Measure the circumference at the widest part of the calf. S = 25-31 cm, M = 32-38 cm, L = 39-44 cm