I'm pretty particular about sunglasses and I really like these.  I don't ride motorcycles or ATVs but I have sensitive eyes and live in an area where it's fairly arid, the wind blows strong, and the sun shines bright.  The foam on the inside of the lenses fits extremely well and keeps the dirt out.  I recommend these glasses for anyone with eyes that are sensitive to anything but particularly to dirt and dust particles and the sun.  Plus, I'm hard on glasses and these have already survived being dropped in the driveway without getting scratched.