I have run 2 pairs of ESS turbofans and one pair or Smith OTW Fans. Both brands were great, but some fogging can still happen with especially with a helmet. Remove the foam and you are GTG. I've seen 3 pairs of teammates Revisions fall apart so I chose to avoid them, YMMV. The Smith fan is super quiet compared to the ESS which are quite noisy. You may want to consider this if you are running a head mounted camera. Also the Smith goggles have a removable battery pack Vs the other two having the battery compartment stitched on the strap.
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