Handing a seven-year-old a size 5 ball is the fastest way to teach bad habits. Too heavy, it forces them to toe-poke instead of striking with the laces, and to clear instead of control.
Size 3
Circumference 58-60 cm, weight 300-320 g. For under-8s. Light enough that a child learns control and the short pass before thinking about power.
Size 4
Circumference 63-66 cm, weight 350-390 g. Ages 8 to 12 — and also the futsal size at every age.
A futsal ball differs from a grass ball of the same size: its bladder is built for much lower bounce, so it stays down. That's deliberate — indoor football is built on the ground pass, not the high ball.
Size 5
Circumference 68-70 cm, weight 410-450 g. The official size from 13 up.
Match ball or training ball?
The difference isn't size, it's construction. A match ball is thermally bonded: no stitching, so water stays out and the weight doesn't change in the second half under rain. A training ball is stitched with a thicker casing that survives concrete, artificial turf and hundreds of strikes a week.
In practice: one match ball for matchdays, a training ball for everything else. A match ball on concrete is finished in weeks.
Pressure
The most common mistake is over-inflation. Recommended pressure is 0.6 to 0.8 bar for most balls, printed near the valve.
Quick test: press with both thumbs and the ball should give slightly. Rock hard means over-inflated — it hurts the foot and shortens the ball's life.
Every size is in the shop.
