Weighing 14 to 16 oz., a No. 5 ball is the largest-sized ball, and players 12 and older can feel like grownups upon graduating to this size, also used by adults. Its circumference is 27 to 28 inches. Prices can start at $15 for a cheap training ball and up to $150 for a match quality ball, especially if it is a special edition issued in conjunction with the World Cup or Olympics.
Changes in temperature will also affect the inflation level of the soccer ball. Extreme heat or extreme cold will alter the shape of the bladder and this will affect the integrity of the soccer ball. Although it doesn’t seem like you could reach an extreme temperature that could do this to a soccer ball, just leaving a ball in your trunk or the back of a van on a hot Summer’s day will do it.