The Cutline glasses are keeping road debris and bugs out of my eyes unlike the competitor glasses I have been using and have great optics. I ordered these with the prescription insert lens and I am extremely pleased. There is no optical distortion when looking through the prescription insert lens and the Cutline sunglass lens (guess the competitors haven’t figured out how to do this yet based on their claims). Rudy Project has thought of everything, they even include some clear “bumpers” to apply to the prescription insert lens to prevent it from scratching the inside of the sunglass lens. I am able to easily switch from the photochromic lens to a mirrored sunglass lens to best suit the riding conditions. In addition to the quality the ordering process was very easy and I received my glasses with prescription insert lens in 8 calendar days. I definitely recommend Rudy Project to anyone looking for cycling glasses as well as anyone needing a prescription lens.