The Nike ZoomX Dragonfly 2 'Prototype' delivers a long-distance track shoe built for speed. White engineered mesh is deployed on the upper, featuring a slightly wider midfoot and forefoot compared to the previous model. A responsive ZoomX foam midsole packs a curved full-length plate for a propulsive feel. The outsole features a removable four-spike design with an elevated big-toe side platform and updated heel structure for improved stability.