I've got these and the anthems. I can't use the anthems with my boele helmet, and I never ride without it. They fog up crazy bad. These haven't fogged up on me even with a helmet/goggle crack full of fresh. Oh, and I will NEVER go back to non-polarized goggles again. It's more than worth the extra ends.

Almost all goggles on the market are double lensed, this one included. Most purveyors of single lensed goggles are cheap off-brand products that you'd probably find in a gas station heading up to the resort.If you're looking at particularly good venting, Smith's goggles with their helmets are designed to work together for no fog. I didn't believe all the marketing hype around Smith's lineup, but after trying it all myself, it makes a huge difference in terms of visibility in any conditions and reduced eye strain with their tapered lens optics.To be fair, I'm burnt out on Oakley because I've had too many of their products fail on me; Smith on the other hand stands behind their gear and gives you better equipment, fairer prices, and a lifetime warranty to boot.Smith Helmets:http://search.backcountry.com/exec/?mv_session_id=L4J2MQQn&aff=1&q=smith+helmet&x=0&y=0Smith Goggles:http://www.backcountry.com/store/SMI0466/Smith-Phenom-Turbo-Fan-Goggle.htmlhttp://www.backcountry.com/store/SMI0462/Smith-Prodigy-Goggle.htmlhttp://www.backcountry.com/store/SMI0391/Smith-Anthem-Spherical-Series-Goggles-Mirror-Lens-Womens.htmlI'm interested to hear what you decide to buy, and feel free to drop me a line if you have any other questions.Cheers!Matt Fuller - mattf@bikemonkeyranch.com