Breathable: Airstream technology keeps you cool, dry and fresh throughout the night. Cover: The cover is constructed from cotton with an airflow mesh. Airflow: When your head presses into the pillow, the airstream begins to pull clean and fresh air from the sides whilst gently streaming it past your head. Comfortable: Aims to relieve pressure and reduce neck ache. Pillows: Get one cool touch air flow pillow. Quantity: Or upgrade to receive a set of two or for pillows.