Description Front Frame: One piece of super flexible stainless. Nosebridge/Top Bar: Super flexible stainless steel metal cut directly into the front frame. Temple Construction: 3 barrel stainless steel hinge. Lens's Protection: BEX NYPO Polarized, UVA, UVB, UVC, and Blue Light protection. Oleophobic (oil protection), hydrophobic (water protection), anti-scratch, hard coating (minimize minor scratching), and anti-reflection (backside) coatings. Size: Lens height 50mm, lens width 58mm, nose bridge width 14mm, the temple from hinge to tip 140mm.Black/Gray (S55BGS) - Matte black flexible stainless steel frame with CP tortoise gray temple inserts. Live Gray tinted lens with a BEX Slash. Gold/Brown (S55GBG) - Shiny Gold flexible stainless steel frame with CP tortoise brown temple inserts. Vibrant brown tinted lens with a Gold Glaze.