Brain-Pad Women's LoPro+ Double Laminated Strap/Strapless Mouthguard Combo, Adult, Pink/Clear Clench & Breathe technology enhances breathing and endurance, breathe through the mouth even while clenching, actually opens Glottis airway 100% Fits over braces and can be worn with or without a strap & Aligns jaw to allow muscles to work at capacity thus maximizing strength (M.O.R.A. Effect)