Key features: Frame made of cellulose acetate. Square frame. Transparent herringbone reinforcement on the temple. 5-point metal hinge. Offers great resistance to handling. Lenses Include: Lenses certified ISO, IAF, and KAB MC 04. Lenses prepared, cut, and hand-checked in our workshop. Possible lens configurations: polarised lenses, prescription lenses, coloured lenses in 14 available colors.