This is an AIO diaper.  It is adjustable from 8-35 lbs (birth through potty training!)

I am the second owner of this diaper, but we have never used it!  (We decided that we didn't like AIOs and preferred AI2s.)  This first belonged to another mama who had this in a huge rotation of 80+ diapers, and she informed me that it had only been on the bum a couple of times.  There is very little wear, as you can see from the photos. Additional photos can be taken upon request.