Onesize that will fit small, medium or large person. New with the tags. Pit to pit is 22 or approximately 44 inches around. The necklline and back are adjustable with the ties. The waist is 26 inches or approximately 52 inches around. The length on the long part is approximately 54 inches. The short part measurement is 38 inches. The hips are 32 inches or approximately 64 inches around.