Getting your hands on the coolest sneakers can be a sport in itself, one which often means trawling the resale sites – but distinguishing the real from the fake isn’t as easy as it sounds. Now, eBay is doing its bit to make buying authentic pairs from brands like Nike, New Balance, Adidas sneakers that much safer with a new, slick authentication process – here’s how it works, and the a few of the shoes you can buy now…