This is a dark navy suit vest from a global style order. I have never worn it and will not have the opportunity to wear it in the future, so I am selling it. The size is about M, I think it's around Y4-5. I think it will be useful for 3-piece suits or jacket-and-pants styles. Shoulder width: 30cm Width: 45cm Length: 58cm *Please forgive any slight errors due to amateur measurements.