Master your football skills when you play like a pro using the Nike All-Field 4.0 Football. This ball has an engineered shape for tighter spirals and a better fit in your hand. High-grade composite leather for more tack and an easier catch, and textured laces help improve your grip in all conditions. The valve is placed to help minimize distraction. Contents: 80% Rubber, 17% Synthetic Leather, 3% Polyester.