FNINE has an extensive selection of training and match balls, but none like the Energos. The FNINE Energos utilizes the most recent technology available for soccer balls... thermal bonding. The thermal bonding process is used in all top professional match balls. Internally, it uses an HA butyl bladder, which is processed through with latex to provide strength and maintain the roundness of the ball. All these components put together make the FNINE Energos an official size and weight soccer ball that complies with FIFA standards.