A Futsal ball is basically an indoor soccer ball used for playing 'Futsal', a term literally meaning 'indoor football'. Futsal is a kind of soccer played on a basketball-sized court using a smaller, heavier, less bouncy ball, and demands many of the same skills as outdoor soccer. Size-wise, FIFA-approved futsal balls are just shy of 25 inches in circumference, slightly smaller than a Size 4 soccer ball. The ball is created with less bounce to facilitate indoor play.
If you're headed to the park to play a quick pickup game, brightly colored adidas soccer balls can help make it easy to distinguish your match from other games that might be being played nearby. Dribbling skills conducted with mini Nike soccer balls can hone your control skills, so you can glide past defenders with ease. Look for 12-panel soccer balls that provide a true, accurate flight with each strike, and rubber butyl bladders that offer excellent shape and air retention, so you can quickly jump into a game without looking for a pump. If you prefer playing indoors, check out a futsal ball that's slightly smaller than regulation soccer balls and is designed for use on hard indoor courts.
With the increased seam length, Goff says there was actually a risk that this ball would be too rough. “Very little changes in those textures can have noticeable aerodynamic effects,” he says. The fact that the Telstar 18 has almost the same drag curve as the Brazuca, with aerodynamic properties changing at about the same speeds, is impressive. “It has to be an engineering and technical challenge,” he says.
On the other hand, replicas (sometimes called training balls or gliders) are designed to be just like the official match balls but are much cheaper. Their panels are often stitched rather than thermally-bonded and are made of a different material. However, they’re not necessarily less durable than official match balls. So, they’re the recommended option for most players. https://www.youtube.com/watch?v=j2Xn84L3Kcs