Size Regular * 2.5 High * 10 -20 Neck Circumference * Female-standard Size For Mature Women & Thin Mature Men * Clinically Tested To Provide Superior Immobilization * Sorbatex Padding Is Clinically Proven To Result In Better Skin Care * Recommended Reimbursement Code Is: L0174 * Miami J Front And Back Panels May Be Interchanged To Accommodate Patient Anatomy E.g. Small Front May Be Used With A Large Back *