The most commonly used materials for casing are PolyUrethane(PU) and PolyVinyl Carbonate (PVC), synthetic leather or a combination of PU and PVC. You can distinguish the type of casing used by touch. Balls that uses PVC usually have a hard exterior but are cheap and durable. PU cased balls are softer to the touch, high in quality and more responsive than PVC balls. Synthetic leather balls offer increased control hence ideal for professional matches or high-level playing. You will also notice a glossy finish on all soccer balls. This comes in handy in minimizing scuffing and water damage to the balls.
The highest in cost, top match balls for elite soccer players are constructed with a supreme quality cover, backing, and bladder for the most predictable flight pattern and striking ability. Some of the most impressive official match balls on the field are made with the threadless, seamless, beveled edge (TSBE) technology which provides a seamless surface for touch and less water uptake to stay in control. adidas soccer balls that pass a demanding series of tests, set by FIFA, on the shape, weight, performance, rebound and water absorption have the highest ranking a soccer ball can get. Most adidas training and pro match balls are FIFA approved so you can lead the charge down the pitch.
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