Abstract: The invention provides a cervical spine immobilization device that is deployed in the field to contact both sides of the head as well as the jaw, neck and/or cervical collar. The device may be formed in the shape of a polyhedron with a number of cuts to form articulated links or extensible sections. The extensible sections form at least two articulated blocking sections that may be positioned on either side of the head. There may also be multiple extensible sections to form four blocking sections, two of which may be arranged on either side of the head and two that are articulated to compress against the jaw, cervical collar or neck of a patient. The extensible sections may also be easily torn to allow removal of blocking sections to improve patient access or to fit the device to the patient. The device provides a disposable restraint that provides secure immobilization and is adjustable to fit nearly any head size.