Dano wrote an answer about Oakley Monster Dog Sunglasses - Polarized on August 18, 2009
These glasses will fog up, but only if you breathe on them. It will for the most part never fog on you when you are doing something while wearing them. Every pair of glasses is capable of fogging,it just that with Oakleys it takes a serious effort. Also all polarized sunglasses will block the wearers eyes.