Thoughtful engineering makes the pillows durable, luxurious and easy to adjust to your comfort level by adding or removing unique fill materials. The Adjustable Pillow is filled with cross-cut foam pieces which can be removed to achieve your exact level of desired firmness. Each pillow is shipped at full foam capacity, so you can customize it to be as firm or plush as you like. You get comfort that supports your head and neck, and you wake up to the same spinal support that helps you achieve rejuvenating, restful sleep.