This is a felt cover ball, which is the major characteristics of an indoor soccer ball. Durable felt cover offers the softness and helps to control the rebounding characteristics. This is a size 5 ball with hand stitched panels. Hand stitched panels are more durable than machine stitched panels. The bounce is not too high, which should be the case of a standard indoor soccer ball.
Though, a ball designed to be played virtually anywhere will have to sacrifice something to achieve that versatility. For the Brasilia, that sacrifice comes in the form of responsiveness. While the glossy finish may offer some protection, it also reduces your touch with the ball. A bladder made out of synthetic rubber-not to mention that TPU is only okay when it comes to touch in the first place, further compounds this effect.
It is also a good idea to clean your soccer ball after you have finished using it. Although regularly cleaning a soccer ball can be a time-consuming chore, it will extend the life of the ball’s cover. The grit, dirt, and debris that the ball can pick up on any pitch impacts the panels and stitching with every rotation. So clean it thoroughly and then allow it to dry for the best possible results.
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
Comfort during the shot should be the number one factor to watch out when you are buying a beach soccer ball. Senda Playa offers you that comfort from its larger, and softer panels. So, you will find it very easy to shot the ball barefooted. The panels are scratch-resistant too that makes it suitable for playing on the rough sand beach. No doubt, like any other beach ball, this one also offers water-resistant cover too.
Much like PU or TPU for soccer ball casings, rubber is considered the best of both worlds for soccer ball bladders when it comes to striking a balance between responsiveness and air retention. Oddly enough, this balance does not actually inspire a greater adoption by either manufacturers or players, and as such, soccer balls with rubber bladders are less popular.
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.