Mares Wahoo Dive Mask -The success of this product derives from meticulous computer design and numerous optical tests. The central position of the eyes and the optimally angled windows provides the widest possible viewing angle in every direction. EZ Adjust Buckle system mounted on the mask’s skirt. Ideal for medium to larger faces.
Advice on how to prevent your mask from fogging can be found here-
How to Pre-Treat a Dive and Snorkel Mask