Sorry if this is in the wrong spot! Received a new pair of Fuel Cells in the mail today. Got them from 6PM, which I've had good luck with in the past. This pair has me concerned. No authenticity card, but warranty card is there. There was also no MADE IN USA stamped on the arm, which I thought all of them had (At least the 3 pairs of fuel cells I've owned have). Also, they are polarized, and had a 'P" sticker on the lens, which I understand is a big red flag. Box looks pretty legit, as does the soft pouch. What am I working with here? Thanks!