This is a tailored jacket from Mackintosh Philosophy. The size is 40R, which seems to correspond to a Large. It's a half-lined construction, but the fabric is sturdy, so you should be able to wear it for a long period, except in the peak of summer. I purchased it in August at Sogo Chiba, but I haven't worn it even once due to significant weight gain. Below are the measurements. Please forgive any errors as these are amateur measurements. Length: 72cm Shoulder width: 46cm Width: 54cm Sleeve length: 62cm I think it's a good quality item, so I'd like to sell it to someone who will wear it for a long time. Please consider it.