SIZING INFORMATION: This frame size is Medium with a hinge to hinge measurement of 129. Ideal for average faces. FRAME FEATURES: OO4129 Split Time feature an aviator, matte olive ink frame and Prizm bronze lenses. Oakley Plutonite lenses offer impact resistance and 100% UV protection (UVA, UVB, UVC and blue light up to 400mm). PRIZM BRONZE EVERYDAY Lenses increase vividness and contrast. Light transmission: 21%. MICROBAG AND CLEANING CLOTH INCLUDED: Packaged in Mircobag to clean and store your Oakley eyewear. O MATTER STRESS-RESISTANT FRAME: Oakley's lightweight, durable frame ensures all-day comfort and protection. Injection-molded thermoplastic O-Matter offers better strength and flexibility than acetate, resisting shifting or deforming over time. VISIT THE OAKLEY BRAND SHOP: Click on the Oakley link above the product title to shop the entire Oakley sunglass and eyeglass assortment.