Ray-ban mens rb4173 sunglasses. ultra cool semi-rimless wraparound style with acetate frame featuring curved lenses for comfort and iconic ray-ban signature displayed on temple. packed with original case, cloth and certificate of authenticity. frame colour: black. lens colour: green. Frame colour: black rubber. Eu filter 3n. Lens gradient: no. Hinge type: no flex. Mirrored: no. Polarised: no. Square sunglasses. Usage: fashion. Nylon.