Ben Nethongkome, senior footwear designer at Nike Basketball, says it took 18 months to design Kyrie Irving's latest signature sneaker, the Nike Kyrie 6. Eighteen months ago, the Golden State Warriors were an unstoppable super team with Kevin Durant, Irving himself was a surefire bet to re-sign with the Boston Celtics, and the Brooklyn Nets were struggling to win games. For this signature sneaker, Irving and Nethongkome had a couple of big-picture goals, which they explained on the newest episode of Signature Sneakers.