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.
Bought this as a birthday gift for a 10-yr old boy who loves soccer. The ball is made of a durable rubber material, but it is official weight and size for those who are wondering. The rubber exterior gives the ball more bounce than a typical "official" soccer ball, but IMO it makes the ball more fun to kick around as well as more durable. There are 2 LED lights inside the ball which illuminate when the ball is kicked or tossed onto the ground. LED's shut off automatically after about a minute of inactivity which helps conserve the batteries. No more calling off the soccer game when the sun sets, this ball makes it possible to play in pitch dark conditions and is a blast to kick around. Fun for all ages, kids as well as adults. Great buy, 5 stars.
Much like PU or TPU for soccer ball casings, rubber is considered the best of both worlds for soccer ball bladders when it comes to striking a balance between responsiveness and air retention. Oddly enough, this balance does not actually inspire a greater adoption by either manufacturers or players, and as such, soccer balls with rubber bladders are less popular.
If you've ever noticed, a traditional soccer ball resembles a geodesic dome building. Such as the one designed by architect, Richard Buckminster Fuller. Thus the ball became called the Buckminster Ball. Or more simply, the "Buckeyball". The design is characterized by a pattern of twenty hexagon pieces, and twelve pentagon pieces, fitted together to create a perfect sphere. The soccer ball has undergone many design changes of various-shaped panels stitched together. But until the geodesic dome-like ball, it was never quite round enough to perform right. Manufacturers settled upon the modern thirty-two panel design, which enables the ball to roll and spin more evenly and smoothly. Which is probably why it's the most popular competition soccer ball on the market today. The Buckminister-style soccer ball was first sold in the 1950s, and debuted in the 1970 World Cup tournament.
Latex bladders are one of the best materials when it comes to ball construction. However, with latex bladders, air won’t last as long as butyl bladders and will need more attention for proper inflation. Butyl-blend bladders hold in the air much better, but they are harder and less receptive in play. Mid-priced balls will usually have a mix of butyl and rubber. https://www.youtube.com/watch?v=c1SVcjYY6TE