A tennis cap is an essential accessory for any tennis player, protecting them from the sun and keeping sweat out of their eyes. But there are several different words used to describe this type of cap, including tennis hat, tennis visor, tennis headband, and tennis bandana. A tennis hat typically has a brim that covers the forehead and shades the face, while a tennis visor has a shorter brim and leaves the top of the head exposed. A tennis headband is a narrow band of fabric worn around the forehead, while a tennis bandana can be worn in a variety of ways, such as tied around the head or neck. Regardless of its name, a good tennis cap is a must-have for any serious player.