It's a must have for the michigan sand if you don't want to get sand behind the lenses
I got the Reflex Blue with grey smoke lens. These did exactly what they were supposed to. I used them for a week straight out in the desert and mountains and they kept the dust out perfect. The lens was easy to pop out for cleaning too.
My only regret is that I did not buy a mirrored lens for these, with the next level up of UV blocking, since I was out in the desert I noticed a big difference between the mirrored lens on my old (cheap) goggles and a lot more light came in with the smoke lens and it did bother me somewhat, but that is on me not buying the right lens yet, not the goggles, so if you're riding somewhere bright get the mirrored lens!
**Also to note on the lens, the grey smoke lens that comes with the Reflex Blue goggles is not reflective like in the picture, it looks like the one on the black ("Tornado") pair in the other photo.
100% Accuri Sand Goggles provide excellent protection for roost, wind, sand, and branches. They are hard to fog and provide great optical clarity.