Fake Louis Vuitton is fake. That's supposed to be a LV Neverfull monogram canvas (looks like the large size). Louis Vuitton doesn't use crap leather like a lot of handbag companies use. The leather shouldn't sag like that - it would be too thick. Another thing to look at is the interior liner. Notice the vertical lines? A genuine Neverfull would have every third line filled in with a flower symbol at the top, making those lanes wider. Another thing to look for, but not clearly presented in this picture is the leather straps. Specifically where they connect to the bag. Those tabs look just as dark and aged as the rest of the strap, which shouldn't be the case. Since your hands touch the straps and not the tabs, those tabs shouldn't be nearly as discolored. It's hard to tell though from the image quality. Either way the other two clues are a dead giveaway.

... I only know this because of females friends. I swear.