Sparthos High Altitude Mask - Simulate High Altitudes - for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels] Color:Military Camo which adds a natural elegance

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Sparthos High Altitude Mask - Simulate High Altitudes - for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels] Color:Military Camo which adds a natural eleganceCUT YOUR WORKOUT TIME IN HALF! Training Mask by SPARTHOS makes workouts more effective by simulating high altitude. It will force you to take full and deeper breaths, toughening your diaphragm and respiratory system. UNLOCK THE CHAMPION IN YOU Breathe efficiently and reach unmatched endurance. Less fatigue, hardened body, more energy after training. PROVEN RESULTS, PROVEN TECHNOLOGY SPARTHOS Workout Mask is anatomically designed, cutting edge