INNOVATIVE DESIGN: FitOns are custom-made fit over sunglasses a great alternative to prescription sunglasses. Windows at the temples allow for better peripheral vision LEADING EDGE: Developed from NASA optic technology, by replicating oil droplets found in the eyes of eagles. Blue-light blocking lenses that perform in even the harshest environment of space. VISION ENHANCEMENT: The patented TriLenium Gold lenses block out 99.9% of UV rays while allowing in vision-enhancing light. Resulting in better contrast, higher definition, and vivid imagery. VERSATILE: Don’t settle for cheap prescription sunglasses when you can have the best polarized sunglasses online that will fit over most prescription glasses or reading glasses STYLE: Perfect fit for women or men. Microfiber storage pouch included. If you wear prescription eyewear, we’re certain you’ve never seen a pair of fit-over sunglasses as stylish and protective as our Semi-Rimless Mirror FitOns. These frames are a stunning combination of functional, fit-over sunglasses combined with our industry-defining, blue light blocking and Polarized TriLenium 7 lenses…all in contemporary Crystal Blue, Gray, and Clear frame designs. These FitOns are at the top of their class. Available in Black & Tortoise/Gold Flash Mirror, Crystal Blue/Blue Flash Mirror, Crystal Gray/Silver Flash Mirror, and Crystal Clear/Silver Flash Mirror.