Key features: Renew Eastman(TM) acetate frame: innovative responsible material composed of 60% recycled acetate and 40% bio-acetate, plant-based and biodegradable. Aviator frame. 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 1 lenses: protect against glare in cloudy conditions or indoors. Protect 100% against UVA and UVB. Possible lens configurations: polarized lenses, prescription lenses, colored lenses in 10 available colors.