The adidas UEFA Nations League 26/27 Pro Football (White, Blue, Orange) KE7539 is designed for match play on natural grass. The seamless, thermally bonded construction ensures a stable and predictable flight path, improved control, and low water absorption. Durable polyurethane casing. Butyl bladder. FIFA Quality Pro certification confirms that the model has passed rigorous testing for weight, rebound, shape, and durability. Technical data: Material: Outer: 100% Polyurethane / Inner: 67% Polyester, 33% Viscose / Main material: 50% Ethylene Vinyl / 50% Ethylene Propylene Diene Monomer. Seamless, thermally bonded construction. Butyl bladder. Size "5" ball: FIFA Certified. This model requires inflation.