This bag can be used in multiple ways. It can be worn on the shoulder, crossbody, as a backpack, or as a tote bag. Also, the shape can be made more compact by fastening the hook inside, which changes the look, so you can use it both on and off duty. There is one inner pocket. I have used it a few times after purchase, but I think there are no noticeable stains. The metal part on the front that opens and closes has discolored. Please check the 12th photo. Please consider this before purchasing. ■Size Width: 28cm Height: 27cm Depth: 10cm Weight: 540g