Official volleyball of USA Volleyball FLISTATEC Flight Stability Technology Premium microfiber composite cover Nylon wound Indoor use Official size and weight As the official volleyball of USA Volleyball and the ball of choice for numerous high schools and junior volleyball clubs across the nation, you can expect exceptional, top-of-the-line performance from the FLISTATEC. The original panel design and contrasting colors makes it easier to track the ball's rotation, increasing visibility for players and spectators alike. Its textured microfiber composite cover enhances grip, resulting in more accurate overhand passing and setting. By optimizing the air current around the ball and reducing turbulence, Molten's patented FLISTATEC Flight Stability Technology delivers the control and consistency athletes demand with every contact.