Hollis M-1 Mask - Clear snorkelling stronger than any other in

stronger than any other in the industry

ensure proper blade orientation and help prevent injury in a tight rescue situation

Recreational glass flex sequence

Exclusive engineering of the dry top (patented) and an ergonomically correct mouthpiece make this the ideal for prolonged sessions in the water as it minimises jaw fatigue

Set your dive computer for diving with enriched air nitrox

Hollis M-1 Mask - Clear snorkelling stronger than any other inNow in clear silicone! Visibility 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