Authenticate Jordan 6 by checking the size tag: see if the text is too thick or thin enough to look like it’s scratched. If so, then you’re looking at a 100% fake pair.
Air Jordan 6 fake vs real guides for individual items
Download the Legit Check App By Ch on iOS/Android to have the full encyclopedia of fake vs real guides in your pocket. With a few clicks, you’ll access the relevant part of a guide.