What is a "sweatband"?

A sweatband is a strip or band of fabric that is worn around the head, wrist, or arm to absorb sweat during physical activities such as exercise, sports, or other strenuous activities. Sweatbands are typically made of absorbent materials such as terrycloth or synthetic blends and are designed to wick moisture away from the skin and prevent it from dripping down the face or getting onto clothing. They are often used in sports such as tennis, basketball, or running, and can also be used during workouts or other physical activities to help keep the wearer comfortable and dry. Some sweatbands are also designed for fashion purposes and can be worn as an accessory.