The Flow 1.0 (medium-low) Performance® Pillow is made to provide you with a better night's sleep. The removable, washable Air-X® fabric cover has a T-shirt-like softness for a cozy feel and continuous airflow all night long. This bed pillow is also designed with air vents for maximum breathability. Flow is soft on one side and firm on the other, so you can simply flip your pillow to adjust your comfort level. Engineered and assembled in the USA.