This is the Tusa Visio Pro Single Lens Scuba Diving Mask with Anti-Reflective and UV Coating

Features:

• Low profile, single window teardrop design
• TUSA CrystalView Optical Glass Lens (pat p.)
• Anti-Reflective and UV Lens Treatments
• Special Edition Chrome Frame
• Enhanced field-of-view over 2-window masks
• Skirt mounted Quick-Adjust Buckle System
• Round-edge skirt for maximum fit and comfort
• 3-D strap for ideal anatomical fit

The Visio Pro mask combines TUSA's superior design and build quality with new innovative materials and frame construction. It features TUSA's all new Crystalview Optical Glass treated with a proprietary anti-reflective (A/R) and ultraviolet (U/V) coating up to twenty layers thick. This unique Crystalview AR/UV lens offers the diver enhanced color, clarity, contrast and eye protection without sacrificing light transmission or vision on the surface or underwater. The lens is protected by a special edition two-piece chrome frame and black surgical grade silicone skirt.