Description Made from 50% recycled materials, the Jack are a unisex sports wayfarer design. Lightweight and flexible material to meet the demands of an active lifestyle, whilst being perfectly at home as a fashion piece. The distortion free, impact resistant XTR Karbon8 optical class one Category 3 blue mirror lenses provide maximum protection against UVA, UVB and other harmful blue light up to 400nm. Tested to BS EN ISO 12312-1:201.