Testing the Nike ZoomX Vaporfly Next% at the Running Track

They definitely work. You can feel that, just when you walk in them. Anyway, if Saucony wants to give me a pair of Endorphin Pro for free to compare them, they will be more than welcome. ;-) I'm a Saucony guy, but I must admit Nike did an excellent job with this shoes... until I ran a 10K.