Wilson is a classic sports company that gives you just about everything that you need in a soccer ball. This ball has a synthetic leather cover which is soft to the kick, but also has enhanced ball durability. It has a butyl rubber bladder to hold the air which gives the ball its shape and and retains the air. This has the classic black and white panel colors.
The ball has good texture. It seems to hold air pretty well. The design is cool and is definitely one that is not seen on the pitch or practice field normally. I only have concern that a few of the patches on the ball are not flush with the others. 2 of the small panels are a little raised than the others where the seems meet. When my son and I pass the ball on a perfect synthetic field, it seems to jump just slightly, but it could be in my head since I have seen the seems not level to each other in a few spots on the ball. Mine may be abnormal. Other than that, the ball seems very well made. It even makes the right noises when kicked hard. Overall pretty satisfied.
This ball also comes in sizes 5, 4, and 3 and ships at one pound exactly, and it does not appear to come inflated. This soccer ball ships within the US and is not eligible for international shipping. For the low price and quality of this ball, it is totally worth the value because the exact ball that the pros use is around $100, and this pro soccer ball replica is a fraction of the price.
The Futsal ball is typically smaller, harder, and heavier, allowing for less bounce and better control on harder surfaces. Senda Athletics is the official ball partner of U.S. Youth Futsal and the Vitoria is the Official Ball of the USYF League. Accented with bright red or green and created with fair trade practices, its stamp of "Respect," "Joy," and "Community" expresses the company's philosophy.

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.
Update (2 years post-purchase): Still love this ball and it's in its fifth season of use! I've just ordered another for our team since the fall season makes for darker and darker practices on our unlighted scrimmage field and we've come to rely on this ball so much. My teenagers use this ball at home all the time, including playing "soccer tennis" on hard surfaces and for banging against a brick wall (all of the print is long gone from the outer surface). We even took it to the beach this year. It never fails to get a reaction from people who see it bouncing around in the dark. I did have to replace one of the two lights, but they're available from GlowCity and are very reasonably priced (I purchased a couple of extra lights, just in case). I also bought a pack of 100
Latex bladders are one of the best materials when it comes to ball construction. However, with latex bladders, air won’t last as long as butyl bladders and will need more attention for proper inflation. Butyl-blend bladders hold in the air much better, but they are harder and less receptive in play. Mid-priced balls will usually have a mix of butyl and rubber. https://www.youtube.com/watch?v=c1SVcjYY6TE