The Mustang series sunglasses designed in distinctive vintage classic style and feature certified titanium eye-rim and steel cable wire temples. The frame is finished in dark gun-metal color. The handcrafted cable steel wire temples are flexible and comfortable to wear. The lenses are made of poly-carbonate material which is impact-resistant, scratch-resistant and polarized. They offer above 99% protection against the harmful effects of ultraviolet (UV) radiation. The sunglasses are produced in limited-edition of 500 pieces and each frame is individually numbered. The sun lenses in the frame can be replaced with prescription lenses by an optician, should this ever be required. All Xezo eyewear is guaranteed against all defects in workmanship and parts for a period of 3 years from date of sale. Measurements: lens 55 x 43 mm x bridge 19 mm x arms 145 mm. Weight: 23 grams/0.8 ounces.