Nike Academy Soccer Ball PLAY WITH CONSISTENT FLIGHT. The Nike Academy Soccer Ball features innovative grooves designed for consistent spin when the ball is in the air. High-contrast graphics help you easily track the ball. Nike Aerowsculpt technology uses molded grooves for more consistent flight. Textured casing gives you great touch and feel. Reinforced rubber bladder helps maintain air pressure and shape. More Details 60% rubber/15% polyurethane/13% polyester/12% EVA Imported