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.
It depends on its intended use. Soccer ball casings are made from three kinds of synthetic materials. Polyvinyl carbonate (PVC) which is what most less expensive training balls are made from, Polyurethane (PU) which is the preferred ball for soccer tournaments, and a combination of the two. There are also foam and rubber training soccer balls for kids. Some kids' soccer balls are made of 100 percent thermoplastic polyurethane (TPU), which is a kind of foamy casing material so the ball is very soft. There are greater and lesser grades of each kind of material. PU-covered balls are generally softer, livelier, and have a better feel to them, and are what most people seek when looking for a optimal performing soccer ball.
Why do some soccer balls get bigger over time?  Many soccer balls do tend to get larger over time. Especially lower quality balls! This is due to the pressure of the bladder against the linings and cover.  Over time the material and stitching may stretch out causing the ball to become larger. Also, soccer ball abuse may cause the stitching to loosen and the ball to expand.
This is the 4th one we've ordered! This is a tough ball that glows very brightly at night and comes with an extra battery, but we haven't had to change batteries after 2 summers of playing with it. Whenever my kids brought it out during our outdoor, night-time, community concerts, all the kids wanted to play with it and tons of parents came up to get the information on where to get it. I had originally ordered it so that my son could still see the ball at the end of his fall soccer practices, since they play on a field without lights. Now it is the favorite birthday present to give to all of my kids' friends (ages 7 and 11).
Of everything that we have analyzed about these soccer balls, one of the biggest things that you can look at for is the external material of the ball. TPU seems like it is the standard in durability for soccer balls in this price range. Machine stitching is another thing that you want to make sure that you have, as it appears that some balls that are stitched otherwise can split open and leak. In any case, make sure that you have your own soccer pump so that you can always be sure that your soccer ball is properly inflated.

I purchased light-up-soccer ball for my grandson for his father's birthday (Brooks Bowers) who has officiated games, played games and loved soccer for many years. And I have a picture of my grandson (Kieran) smiling at the rolling lighted ball after he kicked it. I thought it a well made, worked as it arrived with batteries already installed and a wonderful gift. To my surprise my grandson at age 3 is already attending soccer camps for young children.

While the ball features high-quality materials, the focus with this ball is all the smart features and less about the physical make-up of the ball, which doesn’t come in handy when you’re researching! What I did find with this ball is that it’s match quality and built to last. It’s also available in sizes 4 or 5 for multiple ages and training levels.
Early footballs began as animal bladders or stomachs that would easily fall apart if kicked too much. Improvements became possible in the 19th century with the introduction of rubber and discoveries of vulcanization by Charles Goodyear. The modern 32-panel ball design was developed in 1962 by Eigil Nielsen, and technological research continues today to develop footballs with improved performance. The 32-panel ball design was soon overcome by 24-panel balls as well as 42-panel balls, both of which improved performance compared to before, in 2007.[citation needed]
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
For all those budding Pelés, Maradona’s and Messi’s out there (how come nobody wants to be a defender or goalkeeper?) I have put together a guide to the Top Ten most popular and best selling soccer balls available. While having the best soccer ball at your feet will not necessarily make you a better player, every little helps and a quality ball will at least increase your enjoyment of the beautiful game and, quite possibly, your accuracy and ball control. Well, you gotta have faith, don’t you?

The bladder, or the inside, of the soccer ball, is also very important to talk about.  There are typically only two choices that they are made out of butyl and latex.  The higher-end balls usually are latex while butyl is typically meant for training balls.  However, butyl is much better at keeping the air and shape of the ball for longer periods!   
This is a decision that your coach or manager get to decide for you if you are part of a team. Your own ball is one thing that you have control on. However, when it comes to what the team should play with, it is the manager’s job to pick which ball is the best, and what is appropriate for the team for training. Coaches usually stick to training match balls as they give the illusion of actual match balls.
The soccer ball has gone through various changes just as the football game. As opposed to yesterday’s football ball that had stitches and seams and the classic black and white design, today’s soccer balls are designed with the latest technology that lets the ball bend more, fly quicker and also dip harder. Besides, they are quite soft that they let players kick the ball further without risking injuries. https://www.youtube.com/watch?v=DGp37du0xbQ
×