Viking C-2019 Training Mask

• Pulmonary training device, through the controlled resistance to the flow of air, which passes through the special valves.
• Ideal for developing lung capacity and endurance, which is essential in running sports, martial arts and crossfit.
• Effective in practice, it strengthens both the muscles of the lungs and the diaphragm and increases their elasticity.

It has

• valves with different levels of air flow, for progressive exercise,
• outer shell made of anti-allergic neoprene, inner made of natural rubber for a perfect fit,
• extra elastic strap, to adapt to all heads.

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