This is a quality oil tanned watch band. It is tapered from the 22 mm at the pins down to 18 mm at the clasp.  The oil tan gives a good looking patina that will only improve with age.  It is very water resistant, as it will repel water  when you wash your hands or place them underwater for a few seconds. The backing is of the same leather as the front. The band is fitted for larger wrists ideally, but will be okay for medium.  If you have small wrists I believe you may be dissatisfied as you may not have enough buckle holes. I have a medium wrist and use the second from the last. The only slight demerit as far as I'm concerned is that the buckle is a little namby pamby, it should be slightly more bold or sporty.  Overall, I highly recommend this band if you like the looks of it on the photo.