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Butyl rubber is commonly used for the inner bladder of footballs because of its excellent air - retention properties.It can hold air for extended periods, maintaining the ball's proper inflation and optimal bounce.This ensures consistent performance throughout a match without the need for frequent re - inflation. Footballs are often made of synthetic materials like TPU because they offer enhanced durability. Unlike traditional leather, TPU can withstand rough play, extreme weather conditions, and repeated impacts without losing its shape or integrity, ensuring a longer lifespan for the ball. The butyl rubber used in football bladders has outstanding air - retention properties. It can hold air for an extended period, maintaining the ball's proper inflation pressure.