Swift Oval Sunglasses in black bio-based injected nylon with black lenses. Dimensions:- temple length: 4,9 inch- nose bridge length: 0,6 inch weight: 37 grams swift round shape bio-based injected nylon frame and temples (65% bio-based) standard fit lasered logo on the right lens balenciaga logo engraved and enamelled on the left temple lens material: nylon lens filter category: 3 100% uva/uvb not suitable for conversion to optical made in japan bb0157s. Bio injected polyamide. Colour: black