Sneaker Con bets NFC will keep fakes off its new shoe-selling app — Engadget — “Every time you buy a pair from the Sneaker Con application, it’ll come with a physical tag attached to the shoes that features NFC. This Legit Tag comes loaded with information about the sneaker you’re getting (including the model name, size, condition and SKU number). To see that, all you have to do is open the Sneaker Con app and tap the authentication tab.”