Blackfin Antigua Optical Frame pairs ultralight titanium construction with a butterfly silhouette, delivering precise fit and comfortable all-day wear. Key attributes: Shadow dark blue | Deep magenta | Titanium | Hypoallergenic | Ultralight | Durable | Biocompatible | Nickel-free | Ultraflexible beta titanium temples | Shortenable temples with patented tips | Laser-engraved serial number | Includes hard case and microfiber pouch | Butterfly silhouette | Front milled from a single titanium block | Hand-applied color finish | Dimensions & fit: Available sizes: 47, 54 | Frame size: 54-15-145 | Weight: 8.3 g | Composition & care: Titanium