SIZING INFORMATION: This frame size is M with a hinge to hinge measurement of 132 mm. Ideal for average faces. REPRESENT YOUR TEAM: Oakley and the NFL bring you the special-edition Kansas City Chiefs Holbrook, featuring Prizm lens technology, official team logo lens etch and team color accents. These frames are officially licensed product of the NFL. FRAME FEATURES: OO9102 Holbrook square sunglasses for men built for everyday wear and game day. Lightweight matte black O-Matter frame with Three-Point Fit for all-day comfort and Prizm Ruby lenses ideal for color vividness in medium to bright light. LENS FEATURES: Plutonite lenses provide impact resistance and 100% UV protection (UVA, UVB, UVC, and blue light up to 400mm). PRIZM RUBY EVERYDAY enhance color vividness and increase contrast in medium to bright light conditions. Light transmission: 17%. O MATTER & THREE-POINT FIT: Oakley's lightweight, stress-resistant O-Matter frame ensures all-day comfort and protection with Three-Point Fit holding lenses in precise optical alignment. Patented HDO provides superior optical clarity at every angle. MICROBAG, CLEANING CLOTH & BRAND SHOP: Your new eyewear comes with a specially-woven electrostatic Microclear bag for cleaning and storage. Click on the Oakley link above the product title to shop the entire Oakley sunglass and eyeglass assortment.