This set contains a Pillow X™ and a Quilted Pillow X Cover.
Information Pillow X™:
Supportive and comfortable at a weight you won’t even notice. The Pillow X™ is a backcountry sleep necessity and may be the most technically advanced pillow ever developed. The advanced, self-centering X design positions and cradles your head for supportive, stable comfort.
Information Quilted Pillow X ™ Cover:
Here's a quilted, soft-touch fabric pillow cover for next-to-skin comfort on your Pillow X™.
And the best part: you can remove the quilted cover and toss it in the washer/dryer. How to steps, deflate pillow insert into cover with air valve facing towards the opening, inflate to the desired level of comfort.