Shock Doctor Double Braces Strapped Mouthguard Protection for athletes with braces seeking protection for both upper and lower teeth Specifically designed to conform to upper and lower brace brackets for instant comfort and prevention from lacerations Made with 100% medical-grade silicone Adapts to changes in mouth structure as teeth adjust Breathing channels allow for free air flow and easier breathing Ortho-Channel provides structure that improves breathing. Two colors to choose from Quick-release helmet tether Content of Product: Medical Grade Silicone, Polyurethane