Blackfin's Cobalt Optical Frame is a precision-milled titanium frame engineered for ultralight comfort and adaptable fit. It suits everyday eyewear needs with durable construction and handcrafted color detailing. Key attributes: Olympic blue | Shadow dark blue | Titanium | Ultralight | Hypoallergenic | Durable | Nickel-free | Ultraflexible beta titanium temples | Shortenable temples with patented tips | Includes hard case and microfiber pouch | Front milled from a single titanium block | Handmade coloration | Squared silhouette | Dimensions & fit: Lens sizes: 44 / 56 | Bridge: B4 | Temple lengths: 142 mm / 145 mm | Weight: 9.4 g | Adaptable fit via ultraflexible, shortenable temples | Lightweight feel for extended wear | Composition & care: Titanium | Beta titanium (temples)