Headrests Black Triangular-shaped Split-type Modified Car Seat Headrest. Driving seat headrest pillow adopts a U-shaped concave support design to help you correct the twisting of the head and waist, and unconsciously correct the wrong sitting posture in driving, make your driving safer and reduce fatigue. The elastic strap on the back of the cushion has an adjustable buckle that makes soft car headrest pillow fit most car seats. With durable, precision-molded memory foam as its core material, this car neck pillow delivers a stable, cozy fit for enhanced driving comfort. It maintains its original shape, density, and slow-rebound quality, plus the headrest features a soft touch, high flexibility, and good air flow.