SISU® Mouthguards are the safest, thinnest, and most comfortable mouthguards on the planet. However, no mouthguard will freshen your breath. That's why we invented SISU FRESH Mouthguard Spray! This rejuvenating cinnamon and mint flavored mouthguard spray is applied directly to the mouthguard before use, leaving a taste as sweet as victory itself. To clean after use, rinse, spray, and store the mouthguard once it is dry.