Legit Check: How to Authenticate Anything, Real vs Fake
The fastest legit check on any item is to work from the outside in: vet the seller first, then read the logo, the stitching, and the serial before your money leaves your hands. I spent six years moderating authentication on resale marketplaces, and the same handful of tells caught the vast majority of fakes across sneakers, bags, watches, and electronics. This is the exact order I still use.