Compressport pro racing socks ultralight run v2 1compressports pro racing ultralight v21 run socks are made of ultralight technical fabrics for optimum compression breathability and moisture transfer the seamless and non elastic upper layer prevents pressure on legs while the ergonomic toe area ensures the toes are not smothered or compressed during training or racing protects achilles tendonthese ironman edition run socks feature 3d dots on the feet to stimulate blood circulation while othe