Over time, many soccer balls tend to go out-of-round, especially if they are well-used. The Glider is designed to maintain its shape without losing air thanks to the firmness and consistency of the butyl bladder. Under regular use, we found that the air pressure was consistent enough that we didn’t need to add more air to the ball. If you play in organized soccer, then having consistency from the practice ball to the game ball is very important for skill development. The machine-stitched panels offer that experience for most players, even though the ball has the standard panel design.
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