One thing which customers often complain about soccer balls is their poor air retention ability. After a few days on the field, the ball starts to deflate which serves as a big problem for anyone who has to use it on a daily basis. However, there is no such thing with the Top Glider as inside this ball is the butyl bladder which is becoming a norm with the majority of the Adidas soccer ball’s nowadays for better air retention.
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.