B072M5SVMG TRAININGMASK Training Mask 3.0 | Gym Workout Mask – for Cardio, Running, Endurance and Breathing Performance [Official Training Mask Used by The Pros]

TrainingMask 3.0 is a Performance Breathing Trainer and is a cutting-edge respiratory conditioning device that will take your workouts and fitness to a whole new level. Burn More Fat – Build More Muscle: It’s not all about endurance and stamina – the Training Mask has been scientifically proven to increase your body’s GH levels by up to 25% with exercise. Stay Stronger for Longer: Using the Training Mask in your workouts will decrease the impact of fatigue in your training sessions by increasing your threshold potential, activity strength at exhaustion, and stamina.