Blackfin Hilo Optical Frame pairs ultralight titanium construction with a bi-level butterfly front for comfortable, everyday wear. The design emphasizes a hand-finished two-tone look and flexible temples for a precise fit. Key attributes: Forest green | Blackfin black | Titanium | Hypoallergenic | Ultralight | Durable | Nickel-free | Ultraflexible beta-titanium temples | Shortenable temple tips | Includes hard plano case and soft microfiber pouch | Butterfly front | Bi-level front milled from a single block | Hand-painted two-tone finish | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 150 mm | Frame width: 150 mm | Composition & care: Titanium | Beta titanium | Clean frames and lenses with a soft microfiber cloth; avoid abrasive cleaners or chemicals.