Riffe makes very good gear, I really like a couple of their designs, very low volume, comfortable, but not the greatest field of view, certainly they are suitable for scuba.
I really like the Mares X-vision for a low volume mask, amazing field of view, second most comfortable mask I have ever worn (2nd to the Mares Demon, also fairly low volume).
I really like the Mares X-vision for a low volume mask, amazing field of view, second most comfortable mask I have ever worn (2nd to the Mares Demon, also fairly low volume).