AIRWAAV Endurance Performance Mouthpiece 2 Pack - for Improved Endurance, Breathing and Recovery, Made in The USA SCIENTIFICALLY PROVEN -- Peer-reviewed, published research results: 20% reduction in respiratory rate resulting in less lactic acid; 50% reduction in cortisol improving recovery t...

The AIRWAAV® ENDURANCE Performance Mouthpiece is designed specifically for endurance athletes. AIRWAAV directs your tongue down and forward — when you gently bite down, it creates the optimal airway opening. It’s patented and scientifically proven with peer-reviewed, published research to provid...

The AIRWAAV Performance Mouthpiece directs your tongue down and forward and when you bite down, it creates the optimal airway opening. It's patented and scientifically proven with peer-reviewed, published research to provide athletes: Increased Endurance: Reduces your respiratory rate by 20%. I...