Details Built for quick side-to-side movement, Men's Nike Vapor Ultrafly Pro Baseball Cleat will have you light on your feet. Flywire technology provides a locked-down fit, working in tandem with a 9-cleat outsole for traction and durablity. Synthetic leather and TPU mesh upper for durability. Lunarlon foam delivers a soft, responsive ride. 9-cleat configuration for excellent traction.