The ultimate determination is how a soccer ball feels and performs for you on contact. A good soccer ball will not only be tough enough to hold up to your fast and furious play, it will feature a soft casing for comfortable heading, and durable stitching (if stitched). It should handle well, and have good response. Most good soccer game balls feature a poly-urethane (PU) casing. Most leagues prefer 32-panel designs for its performance value. Also check for a warranty. Your new soccer ball should come with a manufacturer's warranty against defects and damage caused by normal play.
If you’re working on headers, then your forehead won’t feel like it is being repetitively hit with a meat tenderizer thanks to the design of this ball. That soft touch also translates to a reasonably authentic movement when working on crosses or shots. There is a reasonable bend that allows players to wrap a leading ball around a defensive line, curve a shot around a wall, or work on accurate passing. Control skills off of the chest or knee feel close to authentic as well.
This is a felt cover ball, which is the major characteristics of an indoor soccer ball. Durable felt cover offers the softness and helps to control the rebounding characteristics. This is a size 5 ball with hand stitched panels. Hand stitched panels are more durable than machine stitched panels. The bounce is not too high, which should be the case of a standard indoor soccer ball.
Everything becomes scaled down for smaller soccer players compared to the adult game. Kids play on small fields nowhere near the size of a full regulation field 100 or more yards long, with as few as three players compared to 11 for grownups. Even in a league, parents may serve as referees, games may last only 20 minutes and scores more than likely won't be kept. In keeping with this small world, kids' soccer balls are also smaller.

This 12-oz. ball works for players between 8 and 12 years old and has a circumference of 26 inches, larger than a size 3 and smaller than the size 5. This age group tends to play on a field of about 30 to 50 yards, writes Deborah W. Crisfield in "The Everything Kids' Soccer Book," with a goal size of around 6 feet high and 18 feet long. Again, the scale for the U12s falls between that of the U8s and that of the older age brackets for the No. 4 ball and the game as a whole. Some leagues may limit the No. 4 ball to U10s instead of U12s, so check league rules before making a purchase. 
This ball is available in several sizes that are perfect to suit a variety of ages and soccer league requirements. A size 3 ball is the common size recommended for children under the age of 8 and recommended by most junior leagues. Playing soccer can help your child develop their gross-motor skills as well as balance and coordination. Soccer is also a teamwork-heavy game that requires everyone to work together in order to win. This can encourage your child to build friendships and improves socialization skills.
On the other hand, replicas (sometimes called training balls or gliders) are designed to be just like the official match balls but are much cheaper. Their panels are often stitched rather than thermally-bonded and are made of a different material. However, they’re not necessarily less durable than official match balls. So, they’re the recommended option for most players. https://www.youtube.com/watch?v=j2Xn84L3Kcs
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