Acetate frame. European gradient lenses offer 100% UV protection. Spring hinges, custom nose pads and temple tips are exclusive BR details that create a custom fit. Includes hard leather case and cleaning cloth. ?WARNING: This product can expose you to chemicals including Bisphenol-A, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www. P65Warnings. ca. gov.