Probably the Diamond DFM-iX3 Umpire Mask.
My current mask is a black Diamond – not sure of the model. But it is very lightweight and comfortable and has protected me well. The issue with my mask is that the rubberized black coating on the bars that run across the mask have started to break and chip. While this does not, I assume, affect the integrity of the bars, it certainly presents the potential hazard of rubber chips in my eyes. So I’ll be ordering a new mask. For my last game or two I have peeled off all of the loose rubber, exposing the silver underneath. It looks terrible, but it’s fallball and almost done. I will play around with the idea of a hockey style mask for a day or two, and then probably pull the trigger.