Akoni Calisto Optical Frame updates the classic aviator with a double-rim, hand-finished brushed titanium construction and an enamel-inlaid brow bar, ideal for everyday prescription wear. Key attributes: Yellow | Brushed white gold | Matte white gold | Dark tortoise | Titanium | Lightweight construction | Ceramic nose pads with beta-titanium arms | Custom titanium threaded-tube screw hinge | Custom titanium temples with fluted round component | Double-rim aviator shape | Brow bar inlaid with enamel | Hand-finished brushed titanium | Dimensions & fit: Lens width: 51 mm | Bridge: 23 mm | Temple length: 142 mm | Weight: 26 g | Composition & care: Titanium | Ceramic nose pads | Beta-titanium arms | CR-39 lenses | Wipe lenses with a microfiber cloth and approved lens cleaner; store in a protective case when not in use.