NIKE Men's Tiempo Mystic IV FG Soccer Shoe Leather Full-grain natural leather upper for superior comfort and ball feel. Firm-ground (FG) cleat for use on short-grass fields that may be slightly wet but rarely muddy. Full-length TPU plate provides lightweight durability and comfort for play on natural surfaces. Leather heel lining provides lasting comfort on the move. Molded EVA sockliner for arch support and cushioning. Forefoot flex groove for a natural range of motion.