The sad truth, there is nothing to prevent fogging of glasses/goggles!
Today I tossed my goggles into a field of snow. After trying KatKrap, soap, oil, some Yamaha anti-fog - nothing works. The treatments above, take the moisture and turn it into a thin layer of ice. With all the technology out there, I cant believe that this has to be. I can finally ride all year round, warm hands and feet, but a wide open face due to fog ups! This just sucks! Once the sweating starts, and facing a slow up hill climb - bring on the fog - it always happens....after trying every trick. Ill be pissed all day thinking about this.