Nike Air Zoom Structure 18

Nike.com - Strength and growth come from continuous effort — but growing up doesn’t have to mean slowing down, as proven by the new, revolutionary Nike Air Zoom Structure 18. Now in its 18th version, the Nike Air Zoom Structure raises the bar for a running shoe that delivers both speed and stability. The Nike Air Zoom Structure 18 delivers uncompromising stability through the combination of an upper featuring Asymetrical Dynamic Flywire and a triple-density Dynamic Support system in the midsole. The new contoured last — created to provide a better fit and more responsive ride — combined with Nike Zoom Air cushioning, provides added toe spring for the snappy, quick-off-the-ground feel athletes expect from Nike Zoom Air. Designed to provide runners with support and cushioning, the innovative Dynamic Support system uses opposing wedges of foam with different densities to help slow the rate of pronation. Designers enhanced the support in the Nike Air Zoom Structure 18 by adding a third, high-density foam to the existing system. When needed, the three-density Dynamic Support system kicks in to help provide added support and enhance the smooth transition upon foot strike.