Oakley OO9411 Straightback Sunglasses have a single, continuous lens to give you amazingly clear unobstructed views of the environment around you. These Oakley sports sunglasses are built with Plutonite lens material to blocks 100% of all UVA, UVB, UVC, and harmful blue light. Prizm lenses control light to enhance color, contrast, and detail. The Three Point Fit reduces pressure points and holds eyewear in precise optical alignment, while the stress-resistant O Matter frames and Unobtainium nose pads keep the sunglasses from slipping in sweat and moisture. Accessory icon sets (not included) let you change accent colors and customize your style or to match your uniform. Oakley Straightback Sunglasses are created for the demands of extreme sports. Small to large fit. Includes microfiber storage bag. Nonpolarized. Made in USA. About Oakley lenses: Prizm: Designed to deliver ultraprecise color tuning for any environment. By fine-tuning individual wavelengths of color to make everything vivid and vibrant, Prizm sharpens visual acuity to reveal nuances that would otherwise be missed by the naked eye. Iridium: This special metal-oxide coating allows Oakley to fine-tune lenses of any color. The iridium coating regulates contrast, glare, reflection, light transmission, and light absorption, tailoring the lenses to better fit specific conditions. Gradient: Offers a smooth transition in shading from a darker top to a lighter bottom while still retaining true color perception. Photochromic: A premium option for select single-lens eyewear designs, it darkens the lens automatically to help you adapt to changing light and always perform at your best. Even when the photochromic lens color lightens, it still filters out 100% of all UV. Standard Issue(SI) Oakley Standard Issue is a dedicated di Type: Non-Polarized.