I have a size on the border between medium and large. It seems to me that it was necessary to take all the same more, although with an average it is quite comfortable.
With its pros:
Cool mask, does not fog up, it is very comfortable to breathe without a mouthpiece, you can see perfectly, there is an increasing effect. Sailed on the Similan Islands, allowed me to see the marine life in detail. By the way, when diving into the depths, it does not miss, the fit is good.
Some cons:
I'm not sure if See full review