black Aduro Sport Workout Training Mask - for Running Biking Training and Fitness, Achieve High Altitude Elevation Effects with 4 Level Air Flow Regulator [Peak Resistance]

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  • Achieve the effects of a High Altitude Workout Efficiency when training, which helps decrease & maximizes your workout time
  • 4-Level Resistance Valve System - Increase and Conditions Lung Capacity by Creating Pulmonary Resistance
  • Simple Usage, Ultra-Lightweight, Anatomically Designed, Non-Slip Training Strap, One Size Fits Most - From 120 to 230 LBS
  • Strengthens the Diaphragm, Trains Breathing Muscles and Improves Overall Performance in any Sport
  • Covered by Aduro Sport Lifetime Limited Warranty, Enjoy complete peace of mind knowing your Aduro Sport Workout Training Mask is covered no matter what