MARES X Vision Eco Box diving mask

Features: - Ultra-Clear Silicone - Low Drag Design - Small Ribs Around Nose To Relieve Pressure - Field Of Vision 20% Wider Than Previous Version - X-Shaped Silicone Strap Specifications: - Weight: 189g - Volume: Moderate - Tempered Glass Lens: Yes - Fitting: Regular Technologies: Optical Lenses: - Mares offers corrective lenses for most models. In addition to the negative diopters (-1 to -7), for some models also positive diopters are available (+1.5 to +3). Mares design makes it quick and easy to install lenses. Tri-Comfort: - Small horizontal ribs between the frame and the skirt in the area around the nose. These ribs absorb and redistribute the pressure exerted by the frame onto the skirt, with a resulting increase in comfort.