I got these glasses right before a century ride in Death Valley as my regular, non-biking, sunglasses make me tear up as I'm speeding downhill. I initially considered giving these glasses 4-stars as they make me look like a douche bag when I have them on--but from a functional perspective I find them to be quite perfect. They're comfortable, they block the wind and dust during 8+ hours of riding, lower the sun's brightness even as the sun is setting directly on the road in front of me while still keeping the surroundings clear and visible, and lastly, the price is fantastic. As others have said I'm not afraid of breaking or losing them. Specialty sunglasses like this could easily cost you 40-50 in your typical overpriced store.