I still remember the day my vintage Nike windbreaker finally gave out. It was a crisp autumn morning in Portland, and I was cycling to Powell’s Books when the seam under my arm split open. That jacket had been with me through six moves, three music festivals, and countless rainy commutes. I’d bought it for $8 at a Goodwill in 2018, and now it was gone. My friend Marcos, who runs a tiny sneaker boutique in Brooklyn, immediately said, ‘You need to check out orientdig spreadsheet. I found a pair of rare Asics there for half what StockX charges.’ I was skeptical—I’d been burned by sketchy replica sites before. But…