Adams USA LoPro branded customizable double mouth guard - Choose the color & combination to best match your personal style preferences & needs. Repositions, secures and cushions: Protects upper and lower teeth, reduces risk of jaw impact injuries; easily fits over braces Features Clench and Breathe technology that allows you keep your teeth clenched for maximum protection and take deep, full breaths at the same time Custom molds to all teeth with its Boil-n-Bite technology; custom fitting instructions included