SIZING INFORMATION: This frame size is Medium with a hinge to hinge measurement of 132 mm. Ideal for average faces. FRAME FEATURES: OO9497 Briza feature a square, matte olive ink frame and prizm tungsten polarized lenses Oakley Plutonite lenses provide impact resistance and 100% UV protection (UVA, UVB, UVC, and blue light up to 400mm). PRIZM TUNGSTEN POLARIZED enhance color for medium to bright light. HD Polarized lenses block 99% of glare. Transmission: 14% 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