I was on the lookout for some good non fan anti fog ballistic goggles and thought I'd give the FlakJaks a try. At first I wanted to get the full vision of the Mozambik, but after contacting Arena they said they were for non helmet use. Call me crazy, but it would have been nice to just put that intel on their website.
Anyway, I got a good mil price on them at safety systems corp and got to beat up on them a bit on a base visit. The anti-fog performance was great. Being up in WY it was a little cold, but after running around to heat up, the FlakJaks still kept the fog away. I kept at it hard and water/sweat started to condensate on the lens which caused some blurring, however I don't think any goggle is going to prevent this. Specifically I have a "Low Flow" version of the FlakJaks which just means the "Razorback" vents are fairly compact. The manual says to not remove the vents, however they appear quite easy to remove and replace. If one were to come across extra vents I see it as a possibility to put in ones appropriate to the environment. Now when it comes to vent performance, the vents clearly aided in the anti-fog, but for being low-flow I can't exactly recommend them for full vehicle use. After kicking up dust in some rough rides in a hummer, the amount of dust you see in pics 4 and 5 are all on the inside of the goggle. Most of this dust snuck in from side blasts and is a very fine dust, so my eyes didn't have too much problem with what got in.
The field of view is overall great, but when mounted on a helmet such as a MICH, the strap connection pushes plastic into view. The plastic isn't a blinder or anything, yet would be very avoidable by just making the strap connector piece rounded rather than mostly square. You might have a better understanding of what I am talking about by looking at the right side of picture 6. Otherwise the strap adjustment and release system works well, I see now I need to take a picture of it.
I haven't had a chance to fully use the super special purple lens, but works well toning down the sun. The main purpose of the lens is to fool the eye to allow the eyes to go from bright environments such as outside to low light environments such as inside with faster eye adjustment times.
Overall I find the FlakJaks to be a solid ballistic google with superior anti fog qualities. Along with the rounded side connection suggestion, a matching OD green strap would also be a nice touch.