Shock Doctor Double Braces Strapless Mouthguard Best for athletes with braces seeking protection for both upper and lower teeth The Double Braces Mouthguard is specifically designed with Ortho-Channels that immediately conform to upper and lower brace brackets for instant comfort and prevention from lacerations Made with 100% medical-grade silicone This mouthguard adapts to changes in mouth structure as brackets and teeth are adjusted Ventilation channels have been placed through the center of the mouthguard to allow for an increase in airflow