Blackfin Aero Loop is a rimless optical frame crafted from aerospace-grade titanium, designed for an almost invisible, ultra-light feel. It features a patented lens connection for secure fit and long-lasting comfort. Key attributes: Oxide green | Shiny silver | Titanium | Ultra-lightweight | Durable | Hypoallergenic | Biocompatible | Patented rear-mounted lens connection | Ultra-flexible titanium temples | Adjustable temple tips | Includes hard case and microfiber pouch | Rimless frame | Forged front components from a single block of titanium | Aeronautical rivet‑inspired hinge | Anodic oxidation color finish | Hand-polished details | Dimensions & fit: 0-19-150 | Weight 3.5 g | Composition & care: Aerospace-grade titanium