Leather and synthetic hybrid upper for super-soft feel; Highly elastic ENERGYSLING element in upper for stability and energy return * Pre-molded EVA sockliner with nubuck finish for comfort; Embedded toe pads * Durable mesh layer in rearfoot area for added protection; Synthetic leather heel lining for super-soft comfort; miCoach-compatible * SPRINTFRAME construction uses geometrical research for the perfect balance between light weight and stability * Highly elastic ENERGYPULSE outsole element for increased energy output