||Well, I know it's probably not a huge surprise, but guess what!
After 10-15 min on a jungle course, I couldn't see anything but vague blobs of color through these goggles.
The easiest fix to this is simply to pop out the "vents" on the bottom and/or the top. Despite looking like they help airflow, they're actually quite solid. Once those vents are out (I only removed the bottom ones), the goggles serve their purpose wonderfully. After removing the vents, I had no problems whatsoever with fog.
Three easily interchangeable visors
They fog unless you partially disassemble them.
BIG! Hard to look down sights, and they make you look kinda odd without a helmet.
Rating: [4 of 5 Stars!]