Why do some soccer balls get bigger over time?  Many soccer balls do tend to get larger over time. Especially lower quality balls! This is due to the pressure of the bladder against the linings and cover.  Over time the material and stitching may stretch out causing the ball to become larger. Also, soccer ball abuse may cause the stitching to loosen and the ball to expand.
The most modern feature is an embedded NFC chip, which is found on the top of the ball. If you download a free app on iOS or Android, you can personally interact with the ball's exclusive content and location-specific challenges. You'll also be able to participate and enter competitions and World Cup-related challenges. Of course, you can record and upload your experiences for social media posterity.

The bladder, or the inside, of the soccer ball, is also very important to talk about.  There are typically only two choices that they are made out of butyl and latex.  The higher-end balls usually are latex while butyl is typically meant for training balls.  However, butyl is much better at keeping the air and shape of the ball for longer periods!   
Much like the Adidas ball we saw earlier, this offering from Adidas is top-of-the-line.  This a premium match ball that also has received the highest rating from FIFA.  To get that rating, it passed tests on its weight, how it retains air, the shape, and how well it keeps water out.  It also has seamless panels like the Hi-Vis Champions League ball.  Although not a cheap ball, this is worth a look if you are interested I premium match balls.
As a response to the problems with the balls in the 1962 FIFA World Cup, Adidas created the Adidas Santiago[17] – this led to Adidas winning the contract to supply the match balls for all official FIFA and UEFA matches, which they have held since the 1970s, and also for the Olympic Games.[18] They also supply the ball for the UEFA Champions League which is called the Adidas Finale.
There are several different materials and methods of construction used in soccer balls. Typically, Polyurethane casings are preferred as they’re often seamless and thermally bonded for premium play and long-lasting durability. However, many of the hand-stitched options are also very durable. The least durable options tend to be lower in price and machine stitched.
The outer casing of a soccer ball is composed of panels made from synthetic materials, such as PVC, PU, or a combination, sewn or glued together. Soccer ball casings are rarely leather anymore, since leather tends to absorb moisture making the ball heavier and not perform as well. The number of panels or sections of the outer casing varies according to design. Most professional soccer balls are the 32-panel design. More panels mean a rounder and stabler ball, and a more accurate flight.
Sizing is very important in selecting a soccer ball.  For the purposes of this article, I will mostly concentrate on size 5 outdoor soccer balls, but I will quickly go over the various sizes and let you know what they are used for.  Size 1 soccer balls, or skill balls (also known as mini balls), are primarily used by youth players that are just being introduced to the game.  These are typically 1-3-year-olds.  Another use for Size 1 balls is for older players to learn to juggle.  It is much harder to juggle a size 1, so instead of using a hacky sack, they use a skill ball.  This is done because the texture and materials are similar.  Size 3 balls are slightly bigger than size 1 and are used for ages four through seven.  They do this so that the ball isn’t too big in comparison to the players.  Size 4 balls are used for age eight through eleven.  Size 4s are smaller than size 5, which is used for everyone past the age of eleven.  This is the same size that the professionals use.  Making sure that you have the proper ball is just as important as picking out which materials one has.
The amount that you are willing to pay for the soccer ball might influence your search. These range in price depending on its type, make, quality and other features. If you are looking for a ball to kick around for fun or for a child as a toy, it is best that you opt for an inexpensive ball as they are likely to ruin the ball or easily get bored with it shortly after. This also applies to children who are in a league as they will soon outgrow the ball hence the need for a bigger and more expensive soccer ball.
There are a few variables to keep in mind. If you want to practice your skills and footwork, a size 1 ball is recommend. A size 3 ball is best suited for children ages 8 and younger, whereas a size 4 ball is best for ages 8-12, or a size 5 ball for ages 13 and up. With that in mind, many soccer leagues and clubs have their own specifications when it comes to ball size. If you play on a league, it is recommended to check their regulations first.
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.
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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