Hollis M-1 MASK distortion-free vision By applying aramid strings and

By applying aramid strings and molding them together with the foam liner

minimise water ingress

for tightening and adjusting the collar

Not only must your reel be dependable

Hollis M-1 MASK distortion-free vision By applying aramid strings andVisibility 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.