Adidas designs every World Cup ball, and on top of being a big seller for them, engineers at the company are constantly a little closer to the perfect ball, Goff says. The ideal soccer ball is a pimple-covered, perfect sphere, its surface just subtly textured enough to keep the airflow around the ball slightly turbulent. Unintuitive as this might sound, the ridges and pimples on the ball make it more aerodynamic, helping the ball to fly through the air more stably.
The type of soccer cleats or indoor shoes needed depends on what kind of field your child’s team will be practicing and play on. Have your child try on Firm Ground cleats with hard rubber or plastic studs if playing on a pitch made of natural grass or on well-worn artificial turf. Look for Artificial Turf shoes with a super low profile and an outsole evenly covered all-over in small rubber studs for the best traction on an indoor or newer outdoor turf surface.
Shop hand-stitched, machine-stitched and thermally bonded soccer balls for the size and construction you're looking for, like size 5 soccer balls, including adult soccer balls and kids soccer balls. Check out soccer balls from top brands, including adidas® soccer balls, Nike® soccer balls and Select® soccer balls. Shop the best soccer balls for top-rated styles.
When any object goes through the air, a thin cushion of air wraps around it that stays relatively still. This boundary layer is why you get dust trapped on your ceiling fan. At slower speeds, the air around a soccer ball moves smoothly over the surface and separates off the sides of the ball at its widest points. Imagine a ball moving from right to left across a clock, Goff explains, so traveling from the 3 to the 9. With laminar flow, the air flows over the surface and then flows off at the 12 and 6, which creates more drag in the air. Drag slows the ball down faster. At higher speeds, the air moves turbulently across the ball’s surface and peels off at the 2 and 4. The wind effectively wraps around the back. This turbulent flow has less drag, which means the ball keeps moving at high speed for longer.