A pillion seat is an additional seat on a motorcycle designed for a passenger, located behind the rider's seat. It provides a comfortable and secure seating area for a second person, typically featuring a cushioned surface and sometimes backrests or grab handles for added support. The pillion seat is integrated into the motorcycle's design and can be fixed or removable, depending on the model. It enhances the motorcycle's versatility by allowing it to carry a passenger, improving the overall riding experience for both the rider and the pillion.