The Aduro Sport Peak Resistance Training Mask lets you achieve the effects of high altitude training by regulating how much air you breathe in with the 4 Level Air Flow Regulator. You can then reduce the amount of training time by getting the same results in a shorter amount of time. You will also increase your lung capacity and will constantly push your training limits to the fullest!
- Achieve the effects of High Altitude Workout Efficiency when training, helping to maximizes your workout time
- 4-Level Resistance Valve System - Increase and condition lung capacity by creating pulmonary resistance
- Simple Usage, Ultra-Lightweight, Anatomically Designed, Non-Slip Training Strap
- Strengthens the diaphragm, trains lungs and Improves overall athleticism
- One size fits most - from 120 to 230 LBS
Features:Please see the description.
What you get:One  Aduro Sport Peak Resistance Training Mask