The new Bloc Sunglasses FF150 Cari Shiny Black Grey Graduated, is suitable for medium face shapes. TR90 acrylic front frame. Comfortable and lightweight combined with modern styling makes these a great lifestyle piece. Distortion free, impact resistant XTR Karbon8 optical class one grey graduated 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.