What is the required cover material for a volleyball?

The required cover material for a volleyball is smooth leather. This type of leather is preferred because it provides a consistent playing surface, which is crucial for both performance and player safety. Smooth leather allows for better handling, control, and the ability to strike the volleyball effectively during gameplay. The uniform texture of smooth leather also contributes to predictable ball behavior, which is essential for effective passing, serving, and setting.

While other materials like suede leather and textured leather may have their uses in various applications, they do not meet the standard specifications set for official volleyballs. Smooth leather ensures optimal performance characteristics, such as reduced moisture absorption and enhanced durability, which are critical, especially in competitive settings.