These goggles have been great for me. They've never fogged up, but I'm careful to take them off if I'm going to max out on hiking. They're comfortable and the optics are great (which surprisingly isn't always a given on goggles these days). Also this blue mirror is the best all around lens I've ever had. At first I figured I'd be using different lenses for low light days, but I found my friends would be complaining about vis with their flashy lenses and I'd be just fine. I used this lens all season and loved it!