The Hollis M4 Mask is built for divers who prioritise a broad field of vision, comfort, and reliability in demanding diving conditions. Featuring a single-lens, wide-view design, the M4 provides exceptional visibility and a natural, open feel in the water. Its soft silicone skirt delivers a secure, comfortable seal on a variety of face shapes, making it a favourite for recreational and technical divers alike.
Key Features
Single-Lens Panoramic Design – Offers an expansive field of vision and unobstructed forward viewing.
Low-Volume Construction – Streamlined profile for easy clearing and reduced drag.
Soft Silicone Skirt – Ensures excellent sealing and long-term comfort, even on extended dives.
Quick-Adjust Buckles – Simple and precise strap adjustment for a personalised fit.
Durable, Rigid Frame – Rugged build quality suited for frequent and technical diving.
Fog-Resistant Lens Coating – Helps maintain clarity in variable conditions (model dependent).
Benefits
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Wide, open viewing experience enhances situational awareness underwater. 
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Comfortable, contoured skirt provides a secure and leak-free fit. 
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Easy to clear and adjust, making it reliable in both calm and challenging conditions. 
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Durable construction stands up to regular use in pool, lake, and ocean environments. 
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Suitable for a wide range of face shapes, ensuring universal comfort and fit. 
Ideal For
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Recreational and technical divers looking for maximum field of vision. 
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Divers who prefer a single-lens mask for an open, natural view underwater. 
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Frequent travellers and explorers needing a robust, low-volume mask. 















