Sparthos Workout Mask High Altitude Mask - Face Mask for Gym Training, Work Out, Running, Cycling, Elevation, Cardio, Fitness - Resistance o2 2 3 - Lung Breathing Exercise Mask Men Women [Black +Case]

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Five live offers. The cheapest is used, the cheapest new one costs $16.27 more.

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$23.70

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$39.97

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Product Description

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 –...