i4s are terribly made one ball to the face and your puking up paint for a week
Do you actually own a pair, or are you jumping on the inter-web flame wagon?
I personally have used many many masks but have only owned pro-flexes, flex8's, e-vents, I3pros and now I4's and out of those the I4's have by a long shot the best build quality.
If you dont like them then fine thats cool, but to slag them off with no real reasoning presented is moronic.
Based on your own personally experiences with them what exactly is your issue with the I4's?
Because I have got to say they are without doubt the best goggle system I have used.
...this is coming from an idependant player with no affiliation with any paintball brand, so it's not even like i'm just repping sponsors either.