1.4mm thick high quality Korean Ducksung PU - A high performance synthetic leather (32) - Hand-Stitched Panels - 4 layer polycotton laminated (Polyester for responsiveness and durability and cotton for softness) Hi-Tech Super Bladder Official Weight 440gms, Conforms to all FIFA match ball specifications - This Uber Soccer Match Ball conforms to all FIFA regulations on match balls including weight, rebound, roundness and circumference, minimal water retention and minimal pressure loss. This Match Soccer Ball is suitable for soccer matches up to the very Highest Level