The UA mouthguard technology reduces lactic acid to boost performance. WHAT'S IT DO? Clenching your jaw when you compete triggers the release of cortisol—which causes excess fatigue, stress, and loss of concentration. The ArmourBite Mouthguard not only protects you from earth-shaking hits, it also reduces those nasty clenching side effects by pivoting your jaw to the optimal positioning with its patented ArmourBite Power Wedges. The result: increased airflow, strength, endurance, and reaction time. - Includes detachable mouthguard strap for easy, secure attachment to helmet - Perfect for full-contact sports like football, lacrosse, and wrestling - Form-fitting EVA polymer and patented ArchFit System for custom-feel fit and comfort - Patented ArmourBite Power Wedges re-position and re-align jaw to boost performance when you grit your teeth - Reduces G-force impact to the jaw by 20% to protect your teeth - Increases airflow to improve your strength, endurance, and reaction time - Interchangeable ArmourPlate insert protects front teeth - Patented anti-microbulent secretes to help prevent the growth of germs - Dental warranty of $32,000—we put our money where your mouth is - Scientifically proven in independent, peer-reviewed studies so you can buy with confidence - Includes fitting tool for easy, customizable fit - Generally, size Youth (age 8-11) and size Adult (age 12+)