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 *