Model: Columba AKS-100D (BLK) Gender: Unisex Frame Size (mm): Lens Width Bridge Temple 54 19 148 Frame Material: Acetate Frame Description: While clearly continuing to be inspired by laidback spirit of classic SoCal surf culture, the latest spin on Akoni’s popular Columba frame also incorporates a recent Japanese design breakthrough. Starting with a strong thickness of the finest Japanese acetate, Akoni’s artisans have expertly scraped back the surface, crafting a one-of-a-kind, subtle-yet-eye-catching, organic linear pattern. Smaller than the original Columba optical frame, this new silhouette, come with its striking surface of tactile and imperfect markings. 8mm Japanese scraped acetate Custom titanium hinge plate w/ threaded tube screw system and custom screws and washers Lens: Dark Grey, Base 4 high contrast, CR39 lenses with layer anti-reflective coating Warranty: 1 Year Manufacturer Handcrafted in Japan