Besides protecting a rider's eyes from the sun, cycling glasses are essential to protect the rider's face from insects. I really like these glasses because of the coverage, fit, and versatility. They're my go-to glasses for daily road bicycling use, even over the polarized Oakley glasses that I sometimes use on super bright midday rides. I selected the Prizm Road lens, which is versatile for sunny or cloudy days. The glasses fit well with my bike helmet, and don't hang up on the helmet harness, so I'm not thinking about adjusting my glasses during the ride.  Also, these glasses haven't fogged up on me.