My last pair of OTG goggles were from Oakley but looks like they had some kind of design flaw. They were fogging constantly! I was keen to change them and have something better. Now, I have an opportunity to try the Knowledge OTG goggles around Vancouver (just before the trip to Yukon). I read so many good reviews about Knowledge OTG's online. Goggles are essential for ski expeditions like this. Winds are relentless there and in addition to better visibility you are warmer.
From Smith site:
The best fog prevention system available for eyeglass users.
Features:
* Articulating strap positioning system
* Carbonic-X lens with TLT Optics
* Dual Layer Driwix Face Foam
* Floating foam membrane eliminates eyeglass temple pressure
* Helmet Compatible
* Large fit
* Microfiber bag included
* O.D.S. and eyeglass compatible
* Patented Vaporator Lens Technology with Porex™ Filter
* QuickFit strap adjustment system
* Two-speed, micro-electronic fan
* Ultra-Wide Silicone Backed Strap
