Hollis M1 Mask made of highly resistant material

made of highly resistant material for better protection

5inch / 30x48x75cm

DECOMPRESSION DIVE PLANNER WITH ADDITIONAL SURFACE INTERVAL FUNCTION

stopping off at Gloucester for our last night before we tackle the famous Putty Road

At least 18 years old and have a minimum of 30 logged dives

Hollis M1 Mask made of highly resistant materialVisibility 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.