Hollis M-1 Mask toughclaw Adjustable depth-compensating cummerbunde

Adjustable depth-compensating cummerbunde

Breathe through your nose while snorkeling

3-Layer Fabric Technology

refined design

Hollis M-1 Mask toughclaw Adjustable depth-compensating cummerbundeVisibility is the most important aspect of any dive. The M1 mask raises the bar for optical quality and distortion free vision. This lens is an extra clear glass which is valued for its attractive appearance and optical qualities. The low iron content produces a higher light transmittance and a reduced green tint inherent in other glasses. This makes the lens distortion free and helps improve color and visibility in low light conditions underwater.