Hello, I recently purchased my first pair of Oakleys off of eBay (inherently risky, I know). Being new to this, I need the collective knowledge of those wiser than me to help figure out if my pair is legit. I'm worried about the SKU (it is 03-223 55 17 133), it's different than most I've seen, yet returns correct results when put into Google. I'm having trouble getting my pictures attached, only a few are being added so please let me know if more are needed. The "Polarized" is etched onto the lens, and the "OAKLEY" lettering on the side is raised. Thank you all so much in advance!