According to Nike, Flyknit uppers took four years to perfect – so are we seeing one of the evolutionary steps during the sample/test process? This unreleased Nike London Elite looks awfully similar to the Flyknit Racer, with a similarly crafted upper and silhouette, but check out the tooling on the mudguard and you’ll see that the London Elite is indeed a different beast. Perhaps these were intended to be the footwear for Nike athletes in the London Olympics? Check out the gallery of this unreleased sample below and throw in your bids on this size 10 sample from uregenerate on eBay.