Sparthos Training Mask – Simulate High Altitudes – for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16… Price: $37.97 (as of 05/02/2023 15:19 PST- Details)

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✅ CUT 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.