I just got this shirt today. I had to order it on Amazon Japan through SMJ because I didn't have the credit card needed for the order directly at their shop.
Anyway I carefully took it out of the packaging to take a closer look at the back side wich is obviously the interesting part about it. It looks just like you'd imagine it by looking at the pictures. The print is very nice and the fabric is rather thick and strong. Good quality I'd say and a worthy Shenmue shirt to have!