Eco Biobased eyewear is made from 63% renewable non-food oil, certified by the USDA, and a tree is planted for every frame sold. Eco has sustainability and social responsibility as its main commitments, and we empower customers to reuse Ecos packaging and donate their unwanted eyewear to people in need. Prescription glasses by Eco rectangle/square shaped, these stylish Green acetate frames include single-vision lenses, cleaning cloth and case. The lens width on this model is 49mm.