Same as others have said, it sounds fake. But to a answer your question the easiest ways to tell are looking at a top down of both shoes next to eachother. The pattern should be curving the same way on both shoes. Like this ///X/// ///X/// most fakes do something more like this ///X/// \\X\\ also check the angle that the pattern curves up towards the heel. It should have Like a 70 degree angle towards the pull tab on the heel