Elements of the football that today are tested are the deformation of the football when it is kicked or when the ball hits a surface. Two styles of footballs have been tested by the Sports Technology Research Group of Wolfson School of Mechanical and Manufacturing Engineering in Loughborough University; these two models are called the Basic FE model and the Developed FE model of the football. The basic model considered the ball as being a spherical shell with isotropic material properties. The developed model also utilised isotropic material properties but included an additional stiffer stitching seam region.
This type of ball is easy to distinguish because its outer material is similar to the material used on tennis balls. They normally are a size 5 and similar to the outdoor soccer ball. Indoor soccer balls are purposely designed with less rebound in order to accommodate turf and harder surfaces that cover the walls of an indoor soccer field and playing ground.

These balls were add on items and they were a great price. I got four of them because I started coaching U8 soccer. I didn’t want to spend a lot of money on balls let me get ruined or actually find their way home with one of my players, these were a perfect fit. We are only halfway through the season and they’ve held up great, they’ve even used them as the game ball on a couple occasions. I would recommend this to any soccer coach.
You may be worried because you feel it sells too expensive but this is not the case. With all these great features, the ball still ranks as an affordable ball. It features a machine-stitched construction with internal nylon wound carcass that ensures maximum durability and long-term performance. Further, the TPU material used on the exterior will resist abrasion, and the butyl bladder provides best air retention to keep it in shape and remain inflated for a long time.
If you're headed to the park to play a quick pickup game, brightly colored adidas soccer balls can help make it easy to distinguish your match from other games that might be being played nearby. Dribbling skills conducted with mini Nike soccer balls can hone your control skills, so you can glide past defenders with ease. Look for 12-panel soccer balls that provide a true, accurate flight with each strike, and rubber butyl bladders that offer excellent shape and air retention, so you can quickly jump into a game without looking for a pump. If you prefer playing indoors, check out a futsal ball that's slightly smaller than regulation soccer balls and is designed for use on hard indoor courts.
This ball has seen a lot of use since Christmas, and while that's not a good indication of how long the batteries and lights will last, my kids have been having a blast with it at night. This ball isn't like a normal soccer ball, it's more of a smooth rubber, so it won't have the same feel as a normal ball. It feels heavier to me too, but I didn't confirm that on the scale. Once or twice the ball turned off in use, but came back on after a minute. I recommend this ball as an outdoor nighttime novelty ball, certainly not a competition ball. And the 5-star rating is directly from my 8-year-old son. His words, "I love it!"
What is the difference between a high quality soccer ball and a low quality soccer ball? When purchasing soccer balls, many people buy according to the price of the ball. If a ball is expensive, that meant that it is a high quality ball and if it was a low costing ball, the ball is a low quality. That is not always true. Many players, coaches, clubs and even professionals do not know what type of ball to buy for their particular needs.  Please go to the following Soccer Ball World page to start learning about the construction of the various types of soccer balls, click here.
Above I have told you some information about professional soccer ball. I have told you who can use them, I have also listed a couple of great examples of this great soccer balls and after that I have also told you what you should look and how to take care about them. Now it’s time for your move. Take a look and order a couple of these awesome soccer balls.
Huge fan of Bend-It, I would not consider buying any other brand of ball. I have 4 or 5 different styles that have been used and abused during club training and off-season indoor games. It's fun watching another coach pick it out of a crowd of balls to check the brand. I've even had a pro player pick this ball out of a crowd to use in group training sessions (Go STL FC!!)
Select's attention to detail can be found in the ball's handy work and composition. It comes in nine different colors, including bright orange and bright yellow, which are perfect for training in semi-darkness. The 1.5mm PU cover is hand-stitched and textured for the brighter colors, adding durability. The design also aides turf play by zeroing in on control and resistance.
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