Obviously, there are other tall tell signs too, but the EASIEST way to tell an authentic Packers Nike Elite jersey versus a fake jersey is by looking at the stripes on the sleeves!!!! Why do u think some sellers hide photos of the sleeves or the front of the jersey or both or only provide low quality far away photos? Ask the other sellers to show u a close up of the jersey sleeve. To help you out I've added a photo of the comparison, see the second photo.