Put NASA-invented technology to work for you to relieve pressure on your spine caused by disjointed vertebrae. Our Thermosensitive Car Seat Cushion provides an additional layer of high denisty foam cushioning up the entire length of the back and along the neck. This helps ease pressure points on thighs, waist, back and neck. The elastic strapping system holds the car seat in place and fits all types of car seats and high back chairs. Click here to view spine relief area.