Key features: Frame made of cellulose acetate. Oval frame. Transparent linear reinforcement on the temple. 5-point metal hinge. Origin: Germany. Offers great resistance to handling. Lenses Include: Lenses certified ISO, IAF, and KAB MC 04. Lenses prepared, cut, and hand-checked in our workshop. Category 3 lenses: protect against glare in sunny conditions. Protect 100% against UVA and UVB. Possible lens configurations: polarized lenses, prescription lenses, colored lenses in 10 available colors.