This is a standard regular collar shirt from the brand CCU, and of course, it's genuine leather. I think the leather and construction are excellent, befitting a leather fashion brand. It's popular within the brand and reportedly sells well every year. It's a leather shirt with a substantial weight, giving it a strong presence. It's the kind of clothing that elevates my mood when I wear it, and I get a great sense of satisfaction from wearing leather. It has a masculine feel, but the relaxed silhouette compared to a rider's jacket and the shirt pattern make it less harsh, and it's easier to wear in various situations than you might think. Since leather doesn't let wind through, you can wear it as an outer layer except in the dead of winter, depending on the region, if you wear a sweater underneath. Recently, they've switched to sheep leather, so I recommend this, especially for those who preferred the cow leather models from a while back, as they are hard to find. Depending on your preference, I prefer the cow leather for this shirt if wearing it as an outer layer (just my opinion). I haven't worn it that much, and since it's leather and durable, there's little change in appearance, and I think it can still be worn for a long time. Of course, this is a used item, and since it's leather, I ask that you be someone who doesn't mind the original minor scratches, and who has an understanding of used clothing. Please ask any questions you may have before purchasing. Size is 2: Shoulder width: 47cm Body width: 60.5cm Length: 80cm Sleeve length: 60.5cm I think it's about a general L size.