Visibility is the most important aspect of any dive and the M-1 Mask raises the bar for optical quality and distortion-free vision. The lens is ultra-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. Frameless 100% pure silicon skirt Ultra Clear Lens Wide vision and low volume WARNING! This product can expose you to BPA Bisphenol, which is known to the state of California to cause birth defects or other reproductive harm.
