Football Ball Training Size 5

It’s important that young footballers use a ball that’s the right size, no matter their age, which is why our design teams have developed the First Kick. Size 3 for children younger than 8 Size 4 for children aged 8 to 12 Size 5 for all other ages. In addition, we have conducted numerous lab tests to guarantee the ball’s ability to withstand every hit.

Average measured variation: maximum 2%. We measure the football’s sphericity at 16 different points and examine the recorded discrepancies. If the discrepancy is greater than 2% (FIFA PRO Standard), our engineers are tasked with improving the sphericity to ensure a consistent bounce.

We inflate the ball to the recommended pressure (meaning 0.8 bar). 72 hours later, the ball must not lose more than 15% of its pressure, meaning approx. 0.1 bar. The pressure after 72 hours must, therefore, be at approx. 0.7 bar. This also means that it is quite normal for a ball to lose pressure after a few days.”

We simulate rainy playing conditions in a lab, leaving the ball to sit in 2 cm of water on a pivoting support whilst subjecting it to 250 compressions. By the end of the test, the ball must not have absorbed more than 20% of its weight, or approx. 80 g for the First Kick in size 5.