In this case, there were a list of clues that identified the knockoffs from the genuine True Religion brand jeans. From the shape of the pocket flaps to the pattern of the distressing on the denim to the wrong material used for the zipper and rivets, the counterfeit gave itself away. But most obvious was the label itself.
The label on the right came from the knockoff jeans. Notice the spacing and proportion of the letters isn’t quite right. But the most obvious clue here is the color. As you can see, the genuine True Religion brand label (above, left) is a cream color, distinctly different from the much lighter label used on the counterfeit item.