This is an official Nike Merlin Match ball. It is used with no defects during play. There is sharpie on the ball; This does not affect the play of the ball. There are minor nicks on the ball (shown in pictures); holds air perfectly fine. Does not come with original packaging. This is an official Nike ball used within NCAA league play. The ball will ship deflated to make shipping cheaper. As mentioned, there will be no packaging since these balls come in bulk orders. Will ship fast No return


However, this has not stopped players from preferring butyl as their bladder material of choice. In fact, this preference is so well cemented by players of all skill sets, that manufacturers professional game balls are just as likely to use butyl bladders as they are latex often times even more likely. It is interesting to note that butyl is more durable than latex but less durable than rubber-despite providing had better air retention.
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.

Latex bladders are used in high-quality balls. These kind of bladders are soft and provide good feeling. They offer better response and bounce than Butyl bladders, but the downside of this kind of bladder is they don’t hold the air for too long. As a result, they require filling more frequently. Air escapes due to micropores on the cover, but nowadays some balls are constructed with carbon latex bladder to help to close these micropores. As a result, the balls can hold air for a longer period.
This Bend-It soccer ball is designed with training in mind. It’s a regulation size 5 soccer ball which means you’ll train with the same weight and feel as the professionals! It offers a seamless, thermo-bonded surface that’s 100% Polyurethane. You can train with this ball for a long time without worrying about it wearing out prematurely. This design also means no matter how hard you play, your ball will maintain its perfectly round shape. So, when you train you are training with the same feel each time and are bound to perfect your moves!
By no means is this type of ball similar to a typical soccer ball. For starters, instead of air, its bladder is filled with foam. In this case, the ball has less bounce and is heavier in order to facilitate its purpose; meant to be used on a hard surface indoors. This size 4 ball may also have suede castings which help to stabilize the ball on a slippery floor.
Today’s generation of the ball allows teams to be more accurate with their passing and their shots, leading to a myriad of strategies being employed.  Some simply wait and try to shoot from way outside because of the wall the ball flies.  Others use the ball on the ground.  Whichever way, we are certainly all lucky to be able to use today’s technology in our games!  There are a few things to consider when buying a soccer ball.  There are various sizes, materials, qualities, and levels of play which will help determine which one you need for your specific purposes.
This ball has been through all of the hazards that kids can dream up. Dribbling the ball on pavement walking to the car, practicing shots against a brick school, being used as a seat, heavy use at practice, and its frequent selection as the game ball. With all of that, it still looks great with very little wear and tear. Could still pass as a new ball from a few feet away. It's held it's pressure very well. The outer shell texture allows good grip without being to soft or too hard.
What are the different types of soccer balls? Should I buy an expensive one, a middle priced one or a cheap one? What kind of balls are adequate for my needs?  Most soccer balls can be divided into three different categories, professional match balls, match balls, and practice balls.  The type you need of course depends on how and where you want to use the soccer ball. For more information on types of soccer balls, click here. 
Of course, no one should truly expect this ball to be made for an organized league game since its primary selling point is that it glows in the dark. This soccer ball features two red LED lights that are powered by the same kinds of batteries used for watches. Even better, the batteries themselves are easy to change out and even have a specialized tool to assist in doing so. To prevent the batteries from running out too quickly, the ball is kick-activated and stays lit for 40 seconds.
Adidas says its design was motivated by Russia's urban landscapes. It uses textured graphics and a metallic sheen to bring a modern look to the classic design. The ball is made of six panels of thermally bonded TPU and about 15% silicone. The materials allow for better trajectory, accuracy, responsiveness, and low water absorption. It also feels well-padded and slightly lighter than previous match balls.
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