BEST FOR: Seasoned minimalist runners.
THE TEST: Inov-8 shoes were the biggest surprise hit this year. The narrow last is snug, responsive, and anatomically perfect, like a race flat, and the four-millimeter EVA foam midsole and thin fabric overlays hark back to the ur-minimalism of 1970s Onitsuka Tigers (read: low, flat, fast, and fun). While heel strikers will be heartily spanked, efficient midfoot landers will find this to be the smoothest rolling of any of the zero-drops here. The best part: at less than five ounces, this shoe is begging to hammer.
THE VERDICT: Best zero-drop road shoe we tested this year. 4.9 oz.