Medium/Large Fit Polarized injection Polycarbonate lenses. Lifetime Warranty Microfiber cleaning/storage bag included Grilamid frame material with custom metal logo plaques and Megol nose pads Through advanced lens technology, Suncloud polarized lenses selectively filter horizontally reflected, visually interfering light waves known as \\xe2\\x80\\x9cglare\\xe2\\x80\\x9d. The elimination of direct and ambient glare results in superior visual clarity, definition, color transmission and comfort. And, at the same time, our lenses filter out all harmful UV rays. YOUR EYES WILL WELCOME THE MAGIC OF SUNCLOUD POLARIZED OPTICS.