This frame size is X-Small with a hinge to hinge measurement of 122 mm. Ideal for narrow faces. PRESCRIPTION READY: The Ray-Ban optical frames feature lenses that can be replaced with prescription lenses so you can enjoy clear vision and protect your eyes from the sun while still being fashionable! CASE & CLEANING CLOTH INCLUDED: Each pair of Ray-Ban optical glasses come with a cleaning cloth and case to clean and protect your eyeglass frames from scratches and damage VISIT THE RAY-BAN BRAND SHOP: Click on the Ray-Ban link above the product title to shop the entire Ray-Ban assortment