Easy on the eyes and wallet, the vintage wrap design of Optic Nerve's Cloudraker fits a wide variety of face shapes and sizes. The efficient polarized lens helps take the edge off even the sunniest days. Fits narrow face shapes and a wide variety of face shapes and sizes, even though the frames are smallish. Ideal for casual use. Polarized Brown lens for general, bright sun conditions; offers enhanced acuity, definition, and contrast and does not dramatically alter color perception. 18% light transmission (the lower the number, the darker the lens). Precision optics and 100% UVA/UVB sun protection. Polycarbonate lenses for high impact resistance. Polarized lenses filter out 99.9% of reflected light, known as glare; recommended for bright sun and variable light conditions—lens performance is fully maximized on/or around water. Antireflective coating on inside of lens to reduce effects of light reflected from behind the wearer back into the eyes. Hydrophobic coating protects lens from water, oil, dust, and sweat for cleaning ease and durability. Durable, resilient Grilamid TR90 nylon frame material for enhanced performance with a snug, secure, and comfortable fit. Lenses meet ANSI Z80.3 standards for optical clarity, impact resistance, and UV protection. Storage pouch included. Rx compatible.