Another imprint you’ll find on your Adidas 2016 MLS Official Match Ball, is the FIFA quality seal. As you recall, the FIFA testing involves many aspects of testing in order to pass certification and earn this imprint. This ball passed in all categories including circumference, sphericity, rebound, water absorption, weight, loss of pressure, and shape/size retention.
The bladder, or the inside, of the soccer ball, is also very important to talk about.  There are typically only two choices that they are made out of butyl and latex.  The higher-end balls usually are latex while butyl is typically meant for training balls.  However, butyl is much better at keeping the air and shape of the ball for longer periods!   
What sets each soccer ball apart from another is the quality of the materials that are used in its construction. The lining, bladder, cover, and the quality of the overall craftsmanship will all influence the final cost of the soccer ball you’re looking at. Higher quality balls are usually bonded together to provide a superior shape retention experience and offer a truer flight.
The internal nylon wound carcass makes certain the ball is a perfect sphere at all times so that its shape can glide smoothly on any surface. The machine stitching is extensive and delivers unrivaled quality in its structure. The butyl bladder guarantees that no air will escape no matter how often the ball is used. TPU material on the outside is advantageous because it resists scuffing and exterior damage.

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
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