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.
The Obsidian 5 has trademark graphics paying tribute to the USA national team. It is a prestigious soccer ball to add to your soccer equipment if you love buying anything US. The material used is 12% EVA, 13% polyester, 15% polyurethane and 60% rubber. These top-quality materials ensure great performance and excellent ball control to help improve your playing skills in the field. The material is durable enough to handle day to day use, and machine-stitched construction reduces water absorption while equally ensuring durability. It has a rubber bladder that enhances air retention and shape.
This is a decision being made by a league operator or manager of some sort, this section is important for you.  For the individual, there isn’t much of a determination here.  If you want something really nice like the pros, go premium.  But if not, then you probably will just want to go with a training ball.  But for people equipping their teams with materials, this is a decision that needs to be taken seriously.  I would suggest that recreational leagues stick with training match balls, even for matches.  The number of kicks that the ball will get and the improper technique will cause headaches for you if you decide to buy premium balls.  For high schools, I suggest just regular match balls as many are still learning the basics of the game and many teams simply play “kickball” at that age.  For college teams, semi-pros, serious travel clubs, and of course, professional teams, I suggest premium match balls for play!
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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