SIZING INFORMATION: This frame size is M with a hinge to hinge measurement of 132 mm. Ideal for average faces. FRAME FEATURES: OO9102 Holbrook sunglasses for men blend vintage style with Oakley technology. Lightweight matte brown tortoise O‑Matter square frame with Three‑Point Fit for secure fit and Prizm Black lenses for vibrant contrast in bright light. LENS FEATURES: Plutonite lenses offer impact resistance and 100% UV protection (UVA, UVB, UVC, and blue light up to 400mm). PRIZM BLACK EVERYDAY are ideal for bright light and increased vibrance. Light transmission: 11%. O MATTER FRAME & HIGH DEFINITION OPTICS (HDO): Oakley's lightweight, stress-resistant O-Matter frame ensures all-day comfort and protection. Patented HDO provides superior clarity and razor-sharp vision at every angle perfect for everyday wear and sports. THREE POINT FIT: Comfort and performance that holds lenses in precise optical alignment. Contact only happens at the bridge of the nose and behind the temples for a secure and snug fit. 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.