I decided to try to contact Kan Jam, since I was more interested in the possibility of an exchange than a return. In my experience, if a company will honor an exchange, some of the time, they won't require that you send the original product back. But I couldn't find any direct contact info for Kan Jam and decided to just open up a Return Request through Amazon. I did say in the comments that I would prefer an exchange over a return, but I
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.
The interior of the 1GK USA is a bit more mixed in terms of quality than the exterior is. However, the materials used are explicitly designed to increase the ball’s responsiveness-likely to make up for its uncommon rolling and flight patterns due to the butyl fins. Still, aside from being the only hand-sewn ball, this is also the only ball made with a latex bladder on our list. The potential downside is the cotton lining which will get heavy when wet-though it is much softer and provides better responsiveness than either polyester or nylon.
Due to it being significantly softer than the other types of rubbers used for soccer ball bladders, latex is generally seen as the premier material. Though, this same perception may not hold as true for practice balls or even game balls at lower levels of competition. This is because latex bladders retain air worse than all of the other soccer ball bladder materials and will need to be re-inflated more often.
These are used in international level matches and top league matches like UEFA Champions League, Italian Serie A, English Premier League, Spanish La Liga, Bundesliga, Major League Soccer. Not only these but also all the tournaments approved by FIFA. So you can easily understand that these are the highest quality balls with the highest level of air retention, shape, water absorption, trajectory, curve, and performance. Otherwise, FIFA would not have approved these balls.

Considering the positives previously mentioned, you might be wondering why we think this ball is only suited for practice-even if it is one of the best training soccer balls we have seen. This is because the Nike is not that responsive-at least, not compared to match soccer balls. This is largely because this ball uses a rubber bladder. This bladder is not responsive at all. On top of that, the foam lining and TPU casing are not the most responsive either-even if the latter does have texture to help increase its responsiveness.

The cheaper balls only have two polyester layers on their lining. Soccer ball bladders can be made from two different kinds of materials. They can either be latex or butyl. A soccer ball bladder is a component of a soccer ball and it is tasked in containing the air that is within the ball. It also contributes to its shape and the ball’s receptiveness on the field.
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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