The ultimate determination is how a soccer ball feels and performs for you on contact. A good soccer ball will not only be tough enough to hold up to your fast and furious play, it will feature a soft casing for comfortable heading, and durable stitching (if stitched). It should handle well, and have good response. Most good soccer game balls feature a poly-urethane (PU) casing. Most leagues prefer 32-panel designs for its performance value. Also check for a warranty. Your new soccer ball should come with a manufacturer's warranty against defects and damage caused by normal play.
This ball has been through all of the hazards that kids can dream up. Dribbling the ball on pavement walking to the car, practicing shots against a brick school, being used as a seat, heavy use at practice, and its frequent selection as the game ball. With all of that, it still looks great with very little wear and tear. Could still pass as a new ball from a few feet away. It's held it's pressure very well. The outer shell texture allows good grip without being to soft or too hard.
Size 5 is the official size for professional matches. Therefore, this ball is only available in this size. Do not use this soccer ball on concreted areas. Its unique rubber uses Puma Airlock Valve Technology (PAL) in order to facilitate proper airlock technology. This ball features Perimeter Balance Technology (PBT) which enables it to maintain impressive flight characteristics. https://www.youtube.com/watch?v=j2Xn84L3Kcs