The GEL-Nimbus 19 shoe features our revolutionary FlyteFoam Technology, for optimal comfort and a responsive ride for the neutral runner. A gradient jacquard-mesh upper is strategically tightened or loosened in zones to allow the foot's natural motion. 3D printed overlays provide seamless support to the upper. Weight: 11.1 oz. Heel Height: 23mm. Forefoot Height: 13mm.