Measure from the centerline of your face at your mouth to at least 2.5 cm past the outside corner of your mouth (you might want to ask a friend to assist you). The outer edge of the Training Mask should sit against your face at 2.5 to 3.8 cm outside the corner of your mouth.
Double the measurement you have taken and match to the best fit from the below:
• Large: 12.7 cm
• Medium: 11.4 cm
• Small: 10.2 cm
Below is a general guide based on body weight (note that facial measurements are more accurate for ensuring correct fit):
• Large: 113 – 136 Kg
• Medium: 68 – 112 Kg
• Small: 45 – 65 Kg
The TrainingMask 3.0® Performance Breathing Trainer is a cutting edge respiratory conditioning device that will take your workouts and fitness to a whole new level. TrainingMask 3.0® is powered by the revolutionary NXT FORC3 air flow platform which was precision crafted to apply variable levels of load to the respiratory muscles via dial-able air flow adjustment. Performance breathing with the TrainingMask 3.0® makes your respiratory muscles stronger and more efficient; this gives you access to unparalleled workout stamina, endurance, and recovery. Defeat training fatigue and stay stronger longer with the TrainingMask 3.0®.