The Fusion training ball range is made to FIFA Basic Match Ball Standard, delivering strength and durability on a host of different pitches. Their consistency in the most challenging of conditions provides players with dependable performance, instilling confidence for the big game.FIFA Basic Match Standard training ball.Textured TPU outer shell.PU sealing at seams for high level of resistance to water absorption.3.5mm EVA foam backing.One PV backing layer.HR wound bladder with high rebound properties & polyester latex cemented winding.The Fusion has passed rigorous testing to FIFA IMS standard for:Circumference to check to ball is the perfect sizeSphericity to check the ball is perfectly roundRebound properties at different temperatures so the + ball remains optimum in any environmentBall weight between tight parametersLoss of pressure so the ball loses very little air over a long period of timeWater absorption so the ball remains + playable even in the wettest conditions