Pro Workout Training Mask & Cary Bag ✓ For Advanced Workout Sport Training Fitness Running Biking ✓ 4 Levels of High Altitude Elevation ✓ Choose From 3 Sizes For Perfect Fit
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<b>[Product Information]</b><br>
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<li>INCREASED LUNG CAPACITY ✓ 4 inhaling resistance levels can be easily adjusted during training without taking your mask off made possible by the MERS (Maxtir Elevevation Regulation System)</li>
<li>INCREASED MENTAL & PHYSICAL STAMINA ✓ Premium materials including medical silicone and resilient fabric create an ultra lightweight, anatomically designed sleeve that will not slip during training</li>
<li>INCREASED MENTAL CONCENTRATION ✓ Available in 3 sizes - Small - Medium - Large - Refer to size chart in description</li>
<li>INCREASED OXYGEN EFFICIENCY ✓ The mask sets your focus on your breathing by limiting your air supply during training and improves conditioning and overall performance - INHALE Your Limits!</li>
<li>INCREASED ENERGY PRODUCTION ✓ Please make sure to purchase only from Authorized Sellers of Maxtir Training Mask to guarantee Top Quality & Authenticity</li>
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