Sizing is very important in selecting a soccer ball.  For the purposes of this article, I will mostly concentrate on size 5 outdoor soccer balls, but I will quickly go over the various sizes and let you know what they are used for.  Size 1 soccer balls, or skill balls (also known as mini balls), are primarily used by youth players that are just being introduced to the game.  These are typically 1-3-year-olds.  Another use for Size 1 balls is for older players to learn to juggle.  It is much harder to juggle a size 1, so instead of using a hacky sack, they use a skill ball.  This is done because the texture and materials are similar.  Size 3 balls are slightly bigger than size 1 and are used for ages four through seven.  They do this so that the ball isn’t too big in comparison to the players.  Size 4 balls are used for age eight through eleven.  Size 4s are smaller than size 5, which is used for everyone past the age of eleven.  This is the same size that the professionals use.  Making sure that you have the proper ball is just as important as picking out which materials one has.
In 1838, Charles Goodyear introduced vulcanized rubber, which dramatically improved the football.[5] Vulcanisation is the treatment of rubber to give it certain qualities such as strength, elasticity, and resistance to solvents. Vulcanisation of rubber also helps the football resist moderate heat and cold. Vulcanisation helped create inflatable bladders that pressurize the outer panel arrangement of the football. Charles Goodyear's innovation increased the bounce ability of the ball and made it easier to kick. Most balls of this time had tanned leather with eighteen sections stitched together. These were arranged in six panels of three strips each.[6][7]
There are several different materials and methods of construction used in soccer balls. Typically, Polyurethane casings are preferred as they’re often seamless and thermally bonded for premium play and long-lasting durability. However, many of the hand-stitched options are also very durable. The least durable options tend to be lower in price and machine stitched.
This is one of the best and most affordable soccer balls from Mikasa. Expect high performance without having to spend a fortune for it. For a training soccer ball, this one is quite soft hence ideal for foot dribbles and head-butting. This is due to its soft composite cover and the unique machine stitching panels. This is a factor that facilitates control for younger players. A keen look will tell that younger players usually find difficult to control hand-stitched soccer balls. It is available in three sizes; 3, 4 and 5 hence friendly to different users and different functions. The double stitching on the panels adds life to it as makes it more resistant to tear.

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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