Etnia Barcelona sunglasses with natural mineral glass lenses providing the clearest sight in the worl and shock-resistant with anti-scratch, anti-static electricity treatment. Also Hydrophobic - Oleophobic lenses. With maximum UV protection and triple-layer anti-reflective interior. Eyewear Etnia's model Kassel has a masculine rectangular half-rim frame. Etnia's eyewear have a simple but elegant metal structure with acetate temples. Simple and daring combinations for a classic and timeless model.