A flat headband is a type of headband designed with a flat, smooth band that wraps around the head. Unlike traditional rounded headbands, a flat headband typically features a wider and more even surface. This design helps distribute pressure more evenly, making it a comfortable choice for extended wear. It can be made from various materials like fabric, plastic, or elastic, and is often used for both fashion and functional purposes, such as keeping hair in place during workouts or as a stylish accessory.