Adjustable Oxygen Fitness Training Sports Mask

Product information:

Material: ABS, silicone, polyester
Applicable people: man
Applicable activities: outdoor running, endurance training, gym
Color: Black front cover+black headband

Specification: Fourth generation entry-level model (excluding filtering function)

Features:
1. Cut your exercise time in half: Training masks make exercise more effective by simulating high altitude. Allows you to breathe deeply, making the diaphragm and respiratory system strong and powerful.
2. Stimulate the champion's potential: effective breathing, unmatched durability. Less fatigue, strengthen the body, get more energy after training.
3. Significant effect: The exercise mask adopts anatomical design and cutting-edge technology, suitable for any exercise-cardio, fitness, running.

Packing list:
1 * mask