Training balls are ideal for training and recreational use. These are the least expensive and more durable compared to professional match balls as they are meant to be continuously used for an extended period of time. This type of ball is usually constructed with 4 or fewer layers. The casing is made of PVC which makes its quality lower compared to a professional match soccer ball. Usually, the panels of a practice ball are molded together and not stitched together. These type of balls can withstand rough surfaces such as; asphalt and concrete.
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