Size S. A slim man (178cm) could also wear it. I think it's good for small men and women of average build. I wore it about 4-5 times, and after home cleaning, I stored it in a dark place. I think the condition is relatively good. Please check the photos. Please refrain from purchasing if you are nervous as it is managed by an amateur. The number on the back is Asama Daiki, Asamax!