The Nike Strike La LigaFootball features a reinforced rubber bladder and a contrast power graphic for consistent feel and easy visual tracking. Benefits Visual power graphics and LFP logo for easy ball tracking Nike Aerowtrac grooves and 12-panel design for accurate ball flight Reinforced rubber bladder for incredible shape retention Textured casing provides great touch and feel Product Details Two-year stitch and shape guarantee Materials: 65% rubber/15% polyurethane/13% polyester/7% EVA Standard Ball Sizing Size 5: Ages 12 and up Size 4: Ages 8-12 Size 3: Ages 8 and under Size 1: Skills ball