The adaptive memory foam that comprises the cushion absorbs road shocks including potholes, rough terrain, and more. It adjusts to the natural contours of the neck to offer idealized, customized support. The cushions flexibility and endurance make it perfect for users who drive long hours. As with many items that quickly become favorit's, this cushion can be no stranger to dirt and grime, but its removable cover makes stain elimination easy. When the cushion reaches the point where those inevitable dust and dirt splotches are a bit too much to bear, just remember to take the cushion cover off on your next laundry day and include it in the wash.