PUMA - Cellerator Zero_4 K GCi FG (Black/Black/White) - Men's: The worlds most aggressive combination of technology and soccer expertise. By combining a K leather upper with a special moccasin construction, players benefit from an extremely lightweight competition boot. The removable clip attached to the new PUMA Tuning Chassis allows the player to tailor the preferred level of stability within seconds. The combination of the PUMA Tuning Chassis, the integrated Powerframe construction, and the external heel counter provides optimal stability and support, while keeping your kicking stamina at a constant competitive level. The running influenced low profile Ground Control outsole with anatomically proven stud position delivers optimal stability, comfort, and cushioning. Suited best for firm natural surfaces.