The Nike Tiempo Legacy AG Men's Artificial-Grass Football Boot is made with waterproof calf leather to help keep your foot dry and comfortable. Soft-density rubber studs deliver comfort and flexibility on artificial-grass surfaces. Waterproof calf leather upper is lined with mesh. High-density, recycled EVA sockliner reduces cleat pressure. Soft-density, TPU studs for optimal traction on artificial surfaces. Artificial-grass rubber studs for play on varieties of synthetic turf.