Never, the product code makes it possible to reference their website without it costing money and therefore to do free advertising., like NoirFonce. it's pretty tricky ^^
In Europe I have confirmation by a shop : Light Stone 1/03/2022, Marina and Hemp coming later (for Europe).
Why Light Stone available in stockX : Because Nike sent pairs to some stores in Paris and France by mistake. So be patient in March it's the official release :D
Edit : I dont kno why...
I don't know why everyone got so excited about Air Max Day. It was expected that there was the AM90 Bacon, the Kiss My Airs pack, and an Air Max 1 "Evo". But personally I prefer to wait, and have a real worthy release