Liverpool Academy Soccer Ball Featuring innovative grooves designed for a consistent spin when the ball is in the air, you'll be hitting game-winning goals game after game. The high-contrast graphics help you easily track the ball so you can focus on your footwork. Nike Aerowsculpt technology uses molded grooves to disrupt airflow across the ball for less drag and more stable flight. Textured casing has a consistent touch when passing, shooting and dribbling. Rubber bladder helps maintain air pressure and shape.