MatiraMatira is characterized by its frame cutting that is close to a hexagon based on a Boston frame. Products from the 1970s and 1980s, a time when eyewear was diversifying and developing, are reconstructed in a contemporary style. While maintaining classic silhouettes, the designs have been updated to match modern lifestyles. Lightweight (30g) Visible light transmittance 15% UV protection Comes with a case and cloth Materials Composition: biomass plastic