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!   
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.
Machine stitched paneling and the nylon wound carcass helps to mold the shape that is inflated to a perfect circle due to its butyl bladder, which maintains its structure at all times. Using an abrasion resistant TPU exterior, the ball retains its style no matter where it is being played with. The synthetic panels are strong yet comfortable on the side of feet making it a terrific ball to practice skill-building.
This soccer ball is virtually indestructible. The manufacturers have designed it to withstand any challenge yet still keep afloat. It can be run over by a truck yet it will still maintain its balance. Set it ablaze and it will still hold its ground. Instead of air, this ball uses a unique foam known as ethylene-vinyl acetate foam. With this, the ball will never need a pump and will never go flat even when punctured. This special foam reinflates the ball when the need arises. This is a durable ball and you can use it on all types of playgrounds: concrete, grass, sand or any other surface.
The soccer ball has gone through various changes just as the football game. As opposed to yesterday’s football ball that had stitches and seams and the classic black and white design, today’s soccer balls are designed with the latest technology that lets the ball bend more, fly quicker and also dip harder. Besides, they are quite soft that they let players kick the ball further without risking injuries. https://www.youtube.com/watch?v=DGp37du0xbQ
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