It depends on its intended use. Soccer ball casings are made from three kinds of synthetic materials. Polyvinyl carbonate (PVC) which is what most less expensive training balls are made from, Polyurethane (PU) which is the preferred ball for soccer tournaments, and a combination of the two. There are also foam and rubber training soccer balls for kids. Some kids' soccer balls are made of 100 percent thermoplastic polyurethane (TPU), which is a kind of foamy casing material so the ball is very soft. There are greater and lesser grades of each kind of material. PU-covered balls are generally softer, livelier, and have a better feel to them, and are what most people seek when looking for a optimal performing soccer ball.
This Bend-It soccer ball is designed with training in mind. It’s a regulation size 5 soccer ball which means you’ll train with the same weight and feel as the professionals! It offers a seamless, thermo-bonded surface that’s 100% Polyurethane. You can train with this ball for a long time without worrying about it wearing out prematurely. This design also means no matter how hard you play, your ball will maintain its perfectly round shape. So, when you train you are training with the same feel each time and are bound to perfect your moves!
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