For flexible sturdy frames, try the Aurora prescription eyeglasses by Karün. This classy, formal silhouette includes rectangular lenses that fit oval and round face shapes. Made with recycled polycarbonate, a type of plastic that provides a semi-transparent look to the Karün frames, these full rim eyeglasses gently hug your face for a secure and flattering fit. Developed by Karün in association with Shailene Woodley, these frames provide a real sustainable fashion statement.