Adurance High Altitude Training Mask for Men and Women "Jewelry" Lightweight and portable design

Lightweight and portable design

Designed to protect your privacy - Built with multiple layers of privacy protections and controls

Indicator bristle remind you when its time to change brush heads

Set PR alarm limits

Adurance High Altitude Training Mask for Men and Women "Jewelry" Lightweight and portable designThe Adurance 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! Features: Adurance training mask challenges you to have a better workout and improve