The Mares Viper is a freediving and spearfishing mask built to do one thing well: stay out of your way while you focus on the dive. It uses a reduced lens-to-eye distance and minimal internal volume so it equalises easily and clears fast.
The skirt has an anatomical shape with no internal lip, which keeps it light and comfortable against the face, and the silicone used in the skirt is formulated to reduce fogging. A matte, anti-reflective finish cuts glare and helps you stay hidden from wary fish.
A hydrodynamic profile keeps drag low through the water, and the ergonomic buckles are easy to adjust even with cold hands or gloves. It is a focused, lightweight mask for breath-hold divers who value low volume and a wide view.
Key features
Reduced lens-to-eye distance for a wider field of view
Minimal internal volume for easy equalising and quick clearing
Anatomical skirt without an internal lip for a light, comfortable fit
Fog-reducing silicone used in the skirt
Matte, anti-reflective finish to cut glare and stay low-key around fish
Hydrodynamic profile that reduces drag in the water
Ergonomic buckles for easy, effortless adjustment
Specifications
Type
Low-volume freediving mask
Discipline
Freediving / spearfishing
Lens
Tempered glass
Skirt material
Silicone (fog-reducing)
Skirt design
Anatomical, no internal lip
Finish
Matte, anti-reflective
Internal volume
Minimal
Field of view
Wide
Weight
Very lightweight
Frequently asked questions
The matte, anti-reflective surface reduces glare and reflections in the water. For spearfishing that means less chance of spooking fish, and for any breath-hold diver it makes the view a little easier on the eyes.
The silicone is formulated to help reduce fogging, but no mask is fully fog-proof out of the box. We still recommend treating new lenses and using a defog solution or saliva before each dive for the clearest view.
It is optimised for freediving and spearfishing with its very low volume and close lens position. It can be used on scuba, but many divers prefer a slightly higher-volume mask for long tank dives.
