These are brand new, never worn, and in original packaging from Nurse Yard in size 4XL. This set of 4 pairs of CORE Compression socks includes 1 pair of blue/gray, 1 pair of black/gray and 2 pairs of solid black. According to the brand sizing chart, this size is recommended for female shoe sizes 8-14 with a calf circumference of 21-24”. Can also be worn by men with shoe sizes 8-12.