Engineered for superior moisture management, the Airtube Ergo Polartec® Power Dry® offers high-performance protection for high-energy activities. Its bi-component knit fabric wicks moisture away from your skin and disperses it across the surface, ensuring quick evaporation and preventing saturation. With an ergonomic fit that conforms to your face, this airtube is perfect for riders and hikers who demand dry comfort in all conditions.