SISU Mouth Guards Areo 1. 6mm Custon Fit Sports Mouthguard for Youth/Adults, Original.

NEW SIZING SYSTEM FOR SISU AERO Research suggests the taller you are, the larger your dental arch. And thus, bigger mouth guard is required as height increases. Our new and improved sizing system uses the findings of extensive research and testing to suggest the proper guard for you based on how you measure up. 1. 6.