Made with medical-grade silicone, this mouthguard is adaptable to changes in mouth structure as teeth adjust throughout the lifespan of your braces. Ventilation channels have been placed through the center of the mouthguard to allow for an increase in airflow, which can often be problematic for athletes with braces. Insta-Fit: A special Ortho-Channel fits around brace bracket and adapts to changes in tooth position as braces are adjusted, providing an instant fit and protection from lacerations. 100% Medical-Grade Silicone: For ultimate comfort, no boiling or fitting required. Breathing Channels: Allows free air flow and easier breathing. Latex free.