Ruthie tortoiseshell-effect rectangle sunglasses from NANUSHKA featuring brown, acetate, tortoiseshell effect, rectangle frame, brown tinted lenses, logo plaque at the arm and UV protection. All glasses from FARFETCH are sold as non-prescription frames.. These glasses come with a protective case.. Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This item comes from a brand that performs well in relation to their impact on the planet..