Originally meant for the 2012 London Olympics back in August, its similarity to the Nike Flyknit drew a court injunction almost immediately after Nike filed suit. Now, one subsequent appeal later, adidas is finally able to sell its adidas adiZero Primeknit. With its innovative intertwined yarn upper, its easy to see why Nike accused adidas of patent infringement. Yet, with some deft legal maneuvering, where adidas focused less on the patent itself but more on the history of intertwined yarn footwear, it overturned the injunction. Limited to just 2012 pairs, the adidas adiZero Primeknit is now available at select retailers, including UK’s end clothing.