Shock Doctor Adult Double Braces strapless mouthguard is constructed from 100% medical-grade silicone for ultimate comfort. This extremely durable mouthguard utilizes an Integrated Ortho-Channel that fits securely over braces, protecting the mouth from lacerations. FEATURES: 100% medical-grade silicone for ultimate comfort Fits around both upper and lower teeth brace brackets Insta-Fit design never requires refitting after braces are adjusted Breathing channel allows for freer flow of air and easier breathing