Hiya, I was also tempted by AJ1 retro co.jps at $322 v $410 with duties on Stockx. I emailed the company asking for an authenticity assurance. It was a convincing, albeit unsupported, response to do with volume. However, as far as I know, Nike would not disrupt its limited supply model for an unknown retailer’s benefit. Moreover, the English used by the Bupkie rep was poor. On balance, I’m thinking, if it seems too good to be true...maybe safer to shell out an extra $100. Love to know of any experiences people have had though.