The BLOC Contour TT20 round unisex sunglasses are a recent addition to the Bloc eyewear collection. Featuring KARBON TX™ injected frames that are hand finished, they are flexible, durable, lightweight and designed for comfort and fit. Paired with distortion free, impact resistant XTR Karbon8 optical class one 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.