Help improve compliance with this comfortable, lightweight collar. The Headmaster Collar is a unique, low profile cervical collar with a tubular design that reduces heat retention. The improved chin rest has soft padding, and the collar is easy to fit and adjust. The tubular support can be bent to adapt for neck extension and flexion. For sizing, measure the client from the centre of the chin to the corner of the mandible. Large measures 130mm (5"), Medium 110mm (4"), Small 100mm (4"), Junior 89mm (3") and Child 76cm (3"). If the measurement falls between two sizes, order the smaller size. Soft foam extension pads and hard plastic neck pads in Adult or Junior/Child sizes are available separately. Colour Beige.