Like piece of soft-goods-gear, try it out in person before you buy. If you're trying to limit down what masks you want, here's the things that make this mask friggen amazing.
This mask does not fog, ever. So many people will get a mask with a non-fog lens and call it a day. The lens is only a part of what stops fog, breathability is about 60% of keeping a lens clear. This thing is breathable like nothing else. It has vents in the top, sides, and the bendy mouthpiece will never force air back into the mask. An added bonus is that this also makes it far easier to communicate.
This thing is COMFORTABLE, the foam is thick, the ear pieces and strap and comfy, and the tightness is easy to adjust.
The lens change system is super easy. Not as easy as the KLR or the VIO, but it's never going to frustrate you.
All in all, great mask. Not very customizable, but who cares. It'll make your life so much easier. Way better protection than the Proflex and I4 for sure.
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0 of 0 people found the following review helpful:
Great mask however blocking some view.
December 8, 2013
Reviewer:
Remco
from Netherlands
When they design a lense without that annoying black line this mask would be perfect. Now for me (regular head) this black line is blocking some vision which make me stick to my proflex the majority of the time. However the r7 camera mod on the internet works great for this mask and no options for it on the proflex :D I´m a hot head and use the proflex bottom. That bottem is wider on the bottom side which allows more fresh air to blow in to prevent fogging in humit situations.
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3 of 3 people found the following review helpful:
empire eflex
December 4, 2013
Reviewer:
Anonymous Person
This mask in my opion is the best mask avalible . it breathes really well and its very comfortable on your face . its like nothing is on your face because the is so much venting on the bottom of the mask. you can hear very well to.Great lens nothing blocks out view f the field . If you're a guy that has a pretty big head like me you will really like this mask.
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0 of 0 people found the following review helpful:
Just amazing!!!!
May 6, 2013
Reviewer:
Rebelmp
from Elgin, IL United States
I got a pair of black threw a sponsorship package. But since I already had a pair of White ones it was a no brainer to get the black ones for days white just doesn't look right.
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0 of 1 people found the following review helpful:
Great mask!!
May 4, 2013
Reviewer:
Austin Stem
from Dothan AL. United States
The Empire E-Vents are outstanding! You can breath easily with no restrictions the stock lens is awesome,the foam is great besides the fact that it restricts breathing through your nose but when are you ever breathing through your nose in a game!all around great mask got shot five times in the mask first game and cleaned super easily.
The end-all-be-all of masks 
Great mask however blocking some view.