Bloc says -The new Cayman unisex sunglass, is suitable for medium face shapes. TR90 acrylic frames with metal temple detail. Comfortable and lightweight combined with a classic look make the Cayman a sleek lifestyle piece. Distortion free, impact resistant XTR Karbon8 optical class one grey category 3 lenses provide maximum protection against UVA, UVB and other harmful blue light up to 400nm