Nike Pitch Team 25 Blue HV6337 420 Soccer Ball. This Nike ball is designed for recreational play on grass surfaces. Its 12-panel design ensures precise flight. The machine-stitched cover features contrasting colors. A rubber bladder helps maintain proper internal pressure and a spherical shape. Material: 60% rubber, 15% polyurethane (PU), 13% polyester, 12% ethylene vinyl acetate (EVA).