Only size 5, and size 4 are available for this. Although this should not be a major problem as this is for recreational play and practicing purpose, so kids are ok to play with this as well. In fact, the ball that will be given away to the developing countries will be used by the kids mostly. If you are buying this for an adult go for size 5, and if you are buying for kids or youth players then better go for size 4.
Another thing how I picked best soccer balls under $100 was recommendations by other who have already bought it. I searched on the web and also asked some of my teammates that are also a lot in to it. I than merged all opinions and made a list of top 5 soccer balls under 100$ which you can find above in the table! If you really have a low budget look at cheap soccer balls.

Moreover, your soccer ball will probably be stored at your house among your other sports gear. You need to make sure that it is made from safe material that will not degenerate quickly or lead to health hazards if it is touched by a pet or a child. For these reasons, and so many more, people need to find the best soccer balls to buy and use. Soccer balls are assed based on the materials used in manufacturing, the aerodynamics, air pressure retention, water uptake and durability and shape retention. In this article we came up with the list of the best soccer ball brands so that you choose the one that suits your needs and preferences:
Another type of soccer ball that some players may find to be useful is the indoor soccer ball. Indoor balls are designed to have less bounce and rebound to them, making it possible to control the ball on a tighter court or field. The cover of an indoor ball is also the strongest of any category, so it can withstand play on turn, hard court surfaces, and impacts with walls.
This ball is designed to record strike points, speed, spin, and trajectory when used with the training tool. This makes it so much easier to track your progress and find your weak spots during training! The app keeps track of your stats for you to review and compare as you train. Users relate this as a favorite feature because it gives them the opportunity to track their training progress more efficiently.
Whereas plenty of manufacturers that we reviewed opted to go with a soccer ball that was more durable than responsive, Mikasa takes the opposite approach and focuses primarily on the touch that their ball can provide. This is most apparent in the soccer ball’s choice of casing material. The synthetic leather casing of the Mikasa is by far the softest and naturally responsive-without the inclusion of texture-out of any other soccer ball we reviewed.