The first step in purchasing a soccer ball is determining the proper size for your age group. Many soccer leagues have different size requirements, so be sure to check with your coach or organization to find out which is the proper size for the age group that the ball will be used with. Soccer balls for match use come in three different sizes which range from size 3 to size 5.
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