The Luca from Bloc is a classic design, with matt translucent frames, which exposes the reinforced temple structure. The lenses are distortion free, impact resistant, optical class one graduated, and provide maximum protection from UVA, UVB and other harmful blue light up to 400nm. The Luca is a classic sunglass, a design that has stood the test of time. Kept up to date with the matt translucent frames, exposing the re-enforced temple structure. Subtle metal detail deco on the front of the frame finishes off this great looking sunglass. Distortion free, impact resistant XTR Karbon8 optical class one Polarised Grey category 3 lenses provide maximum protection against UVA, UVB and other harmful blue light up to 400nm. Tested to BS EN ISO 12312-1:201.