The TapouT Mouth guard features Ever-Mold Composite, a patent-pending material that allows athletes to boil and mold, then re-boil and re-mold until they achieve the perfect fit, multiple times. The correct fit allows the jaw to lock into a relaxed position, enabling your Temporomandibular Joint to fill with natural fluids to compound the shock absorption qualities of the mouthguard. Not only is this great for getting the right fit initially, for athletes with braces, this means they can re-mold the guard after orthodontic adjustments. Whether you have braces or not, TapouT Mouthguard's Perfect Fit Technology is designed for the ultimate in fit and comfort. TapouT's Ever Mold Advanced Composite is a patent-pending revolutionary material designed to be re-boiled and re-molded multiple times without losing protective integrity.